Casio CLASSPAD330PLUS User Manual

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ClassPad 330 PLUS

ClassPad OS Version 3.10

Software

User’s Guide

CASIO Education website URL

http://edu.casio.com

ClassPad website URL

http://edu.casio.com/products/classpad/

Access the URL below and register as a user.

http://edu.casio.com/dl/

Contents

About This User’s Guide

ClassPad Keypad and Icon Panel .....................................................................0-1-1

On-screen Keys, Menus, and Other Controllers ................................................0-1-2

Page Contents ....................................................................................................0-1-3

Chapter 1 Getting Acquainted

1-1 General Guide ....................................................................................... 1-1-1

General Guide ....................................................................................................1-1-2

Using the Stylus .................................................................................................1-1-4

1-2 Turning Power On and Off ................................................................... 1-2-1

Turning Power On .............................................................................................1-2-1

Turning Power Off .............................................................................................1-2-1

Resume Function ..............................................................................................1-2-1

1-3 Using the Icon Panel ............................................................................. 1-3-1

1-4 Built-in Applications ............................................................................ 1-4-1

Starting a Built-in Application ..............................................................................1-4-2

Application Menu Operations .............................................................................1-4-2

1-5 Built-in Application Basic Operations ................................................. 1-5-1

Application Window ...........................................................................................1-5-1

Using a Dual Window Display ............................................................................1-5-1

Using the Menu Bar ............................................................................................1-5-3

Using the O Menu ..........................................................................................1-5-4

Using Check Boxes ............................................................................................1-5-6

Using Option Buttons ..........................................................................................1-5-7

Using the Toolbar ...............................................................................................1-5-8

Interpreting Status Bar Information ....................................................................1-5-9

Pausing and Terminating an Operation .............................................................1-5-9

1-6 Input ....................................................................................................... 1-6-1

Using the Soft Keyboard ....................................................................................1-6-1

Input Basics .......................................................................................................1-6-3

Advanced Soft Keyboard Operations ................................................................1-6-8

1-7 Variables and Folders .......................................................................... 1-7-1

Folder Types .......................................................................................................1-7-1

Variable Types ...................................................................................................1-7-2

Creating a Folder ...............................................................................................1-7-4

Creating and Using Variables .............................................................................1-7-5

Assigning Values and Other Data to a System Variable ..................................1-7-10

Locking a Variable or Folder .............................................................................1-7-10

Rules Governing Variable Access ....................................................................1-7-11

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1-8 Using the Variable Manager ................................................................. 1-8-1

Variable Manager Overview ...............................................................................1-8-1

Starting Up the Variable Manager ......................................................................1-8-1

Variable Manager Views .....................................................................................1-8-2

Exiting the Variable Manager ............................................................................1-8-2

Variable Manager Folder Operations .................................................................1-8-3

Variable Operations ............................................................................................1-8-7

1-9 Configuring Application Format Settings ........................................... 1-9-1

Specifying a Variable ..........................................................................................1-9-2

Initializing All Application Format Settings ..........................................................1-9-3

Application Format Settings ................................................................................1-9-4

Chapter 2 Using the Main Application

2-1 Main Application Overview .................................................................. 2-1-1

Starting Up the Main Application ........................................................................2-1-1

Main Application Window ...................................................................................2-1-1

Main Application Menus and Buttons .................................................................2-1-3

Using Main Application Modes ...........................................................................2-1-4

Accessing ClassPad Application Windows from the Main Application ...............2-1-5

Accessing the Main Application Window from Another ClassPad

Application ..........................................................................................................2-1-6

2-2 Basic Calculations ................................................................................ 2-2-1

Arithmetic Calculations and Parentheses Calculations ......................................2-2-1

Using the e Key ..............................................................................................2-2-2

Omitting the Multiplication Sign ..........................................................................2-2-2

Using the Answer Variable (ans) ........................................................................2-2-2

Assigning a Value to a Variable ..........................................................................2-2-4

Calculation Error .................................................................................................2-2-4

Calculation Priority Sequence ............................................................................2-2-5

Calculation Modes ..............................................................................................2-2-6

2-3 Using the Calculation History .............................................................. 2-3-1

Viewing Calculation History Contents .................................................................2-3-1

Re-calculating an Expression .............................................................................2-3-2

Deleting Part of the Calculation History Contents ..............................................2-3-4

Clearing All Calculation History Contents ...........................................................2-3-4

2-4 Function Calculations........................................................................... 2-4-1

2-5 List Calculations ................................................................................... 2-5-1

Inputting List Data ...............................................................................................2-5-1

Using a List in a Calculation ...............................................................................2-5-3

Using a List to Assign Different Values to Multiple Variables .............................2-5-4

2-6 Matrix and Vector Calculations ............................................................ 2-6-1

Inputting Matrix Data ..........................................................................................2-6-1

Performing Matrix Calculations ...........................................................................2-6-4

Using a Matrix to Assign Different Values to Multiple Variables .........................2-6-6

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2-7 Specifying a Number Base ................................................................... 2-7-1

Number Base Precautions ..................................................................................2-7-1

Binary, Octal, Decimal, and Hexadecimal Calculation Ranges ..........................2-7-1

Selecting a Number Base ...................................................................................2-7-3

Arithmetic Operations .........................................................................................2-7-4

Bitwise Operations ..............................................................................................2-7-5

Using the baseConvert Function (Number System Transform) ..........................2-7-5

2-8 Using the Action Menu ......................................................................... 2-8-1

Abbreviations and Punctuation Used in This Section .........................................2-8-1

Example Screenshots .........................................................................................2-8-2

Displaying the Action Menu ................................................................................2-8-3

Using the Transformation Submenu ...................................................................2-8-3

Using the Advanced Submenu ...........................................................................2-8-8

Using the Calculation Submenu .......................................................................2-8-12

Using the Complex Submenu ...........................................................................2-8-19

Using the List-Create Submenu .......................................................................2-8-21

Using the List-Calculation Submenu ................................................................2-8-24

Using the Matrix-Create Submenu ...................................................................2-8-31

Using the Matrix-Calculation Submenu ............................................................2-8-33

Using the Vector Submenu ...............................................................................2-8-38

Using the Equation/Inequality Submenu .........................................................2-8-42

Using the Assistant Submenu ..........................................................................2-8-47

Using the Distribution and Inv. Distribution Submenus ....................................2-8-48

Using the Financial Submenu ...........................................................................2-8-57

Using the Command Submenu ........................................................................2-8-64

2-9 Using the Interactive Menu ................................................................. 2-9-1

Interactive Menu and Action Menu .....................................................................2-9-1

Interactive Menu Example ..................................................................................2-9-1

Using the “apply” Command ...............................................................................2-9-4

2-10 Using the Main Application in Combination with Other

Applications ........................................................................................ 2-10-1

Opening Another Application’s Window ...........................................................2-10-1

Closing Another Application’s Window .............................................................2-10-2

Using the Graph Window $ and 3D Graph Window % ..............................2-10-2

Using a Graph Editor Window (Graph & Table: !, Conics: *,

3D Graph: @, Numeric Solver: 1) ...............................................................2-10-4

Using the Stat Editor Window ( ...................................................................2-10-5

Using the Geometry Window 3 ....................................................................2-10-9

Using the Sequence Editor Window & ........................................................2-10-11

2-11 Using Verify ......................................................................................... 2-11-1

Starting Up Verify .............................................................................................2-11-1

Verify Menus and Buttons ................................................................................2-11-2

Using Verify ......................................................................................................2-11-3

2-12 Using Probability ................................................................................ 2-12-1

Starting Up Probability ......................................................................................2-12-2

Probability Menus and Buttons .........................................................................2-12-2

Using Probability ...............................................................................................2-12-4

2-13 Running a Program in the Main Application .................................... 2-13-1

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Contents

Chapter 3 Using the Graph & Table Application

3-1 Graph & Table Application Overview ................................................... 3-1-1

Starting Up the Graph & Table Application .........................................................3-1-1

Graph & Table Application Window ....................................................................3-1-1

Graph & Table Application Menus and Buttons ..................................................3-1-2

Graph & Table Application Status Bar ................................................................3-1-7

Graph & Table Application Basic Operations .....................................................3-1-7

3-2 Using the Graph Window ...................................................................... 3-2-1

Configuring View Window Parameters for the Graph Window ...........................3-2-1

Viewing Graph Window Coordinates ..................................................................3-2-5

Scrolling the Graph Window ...............................................................................3-2-6

Panning the Graph Window ................................................................................3-2-6

Zooming the Graph Window ...............................................................................3-2-7

Other Graph Window Operations .....................................................................3-2-10

3-3 Storing Functions ................................................................................. 3-3-1

Using Graph Editor Sheets .................................................................................3-3-1

Specifying the Function Type .............................................................................3-3-2

Storing a Function ..............................................................................................3-3-3

Using Built-in Functions ......................................................................................3-3-5

Saving the Message Box Expression to the Graph Editor Window ....................3-3-5

Editing Stored Functions ....................................................................................3-3-6

Deleting All Graph Editor Expressions ...............................................................3-3-7

Graphing a Stored Function ...............................................................................3-3-7

Saving Graph Editor Data to Graph Memory ....................................................3-3-14

3-4 Using Table & Graph ............................................................................. 3-4-1

Generating a Number Table ...............................................................................3-4-1

Editing Number Table Values .............................................................................3-4-4

Deleting, Inserting, and Adding Number Table Lines .........................................3-4-5

Regenerating a Number Table ...........................................................................3-4-6

Generating a Number Table and Using It to Draw a Graph ...............................3-4-7

Saving a Number Table to a List ........................................................................3-4-8

Generating a Summary Table ............................................................................3-4-9

Making the Graph Editor Window the Active Window ......................................3-4-15

3-5 Modifying a Graph................................................................................. 3-5-1

Modifying a Single Graph by Changing the Value of a Coefficient

(Direct Modify) ....................................................................................................3-5-1

Simultaneously Modifying Multiple Graphs by Changing Common Variables

(Dynamic Modify) ................................................................................................3-5-4

3-6 Using the Sketch Menu ......................................................................... 3-6-1

Sketch Menu Overview .......................................................................................3-6-1

Using Sketch Menu Commands .........................................................................3-6-1

3-7 Using Trace ............................................................................................ 3-7-1

Using Trace to Read Graph Coordinates ...........................................................3-7-1

Linking Trace to a Number Table .......................................................................3-7-3

Generating Number Table Values from a Graph ................................................3-7-4

3-8 Analyzing a Function Used to Draw a Graph ..................................... 3-8-1

G-Solve Menu Overview .....................................................................................3-8-1

Using G-Solve Menu Commands .......................................................................3-8-2

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Chapter 4 Using the Conics Application

4-1 Conics Application Overview ............................................................... 4-1-1

Starting Up the Conics Application .....................................................................4-1-1

Conics Application Window ................................................................................4-1-1

Conics Application Menus and Buttons ..............................................................4-1-2

Conics Application Status Bar ............................................................................4-1-4

4-2 Inputting Equations ............................................................................. 4-2-1

Using a Conics Form to Input an Equation .........................................................4-2-1

Inputting an Equation Manually ..........................................................................4-2-3

Transforming a Manually Input Equation to a Conics Form ...............................4-2-3

4-3 Drawing a Conics Graph ...................................................................... 4-3-1

Drawing a Parabola ............................................................................................4-3-1

Drawing a Circle .................................................................................................4-3-4

Drawing an Ellipse ..............................................................................................4-3-5

Drawing a Hyperbola ..........................................................................................4-3-6

Drawing a General Conics ..................................................................................4-3-8

4-4 Using Trace to Read Graph Coordinates ............................................ 4-4-1

Using Trace ........................................................................................................4-4-1

4-5 Using G-Solve to Analyze a Conics Graph ......................................... 4-5-1

Displaying the G-Solve Menu .............................................................................4-5-1

Using G-Solve Menu Commands .......................................................................4-5-2

Chapter 5 Using the 3D Graph Application

5-1 3D Graph Application Overview .......................................................... 5-1-1

Starting Up the 3D Graph Application ................................................................5-1-1

3D Graph Application Window ............................................................................5-1-1

3D Graph Application Menus and Buttons .........................................................5-1-2

3D Graph Application Status Bar ........................................................................5-1-4

5-2 Inputting an Expression ....................................................................... 5-2-1

Using 3D Graph Editor Sheets ...........................................................................5-2-1

Storing a Function ..............................................................................................5-2-2

5-3 Drawing a 3D Graph .............................................................................. 5-3-1

Configuring 3D Graph View Window Parameters ..............................................5-3-1

3D Graph Example .............................................................................................5-3-3

5-4 Manipulating a Graph on the 3D Graph Window ................................ 5-4-1

Enlarging and Reducing the Size of a Graph .....................................................5-4-1

Switching the Eye Position .................................................................................5-4-1

Rotating the Graph Manually ..............................................................................5-4-2

Rotating a Graph Automatically ..........................................................................5-4-3

Initializing the Graph Window .............................................................................5-4-3

5-5 Other 3D Graph Application Functions ............................................... 5-5-1

Using Trace to Read Graph Coordinates ...........................................................5-5-1

Inserting Text into a 3D Graph Window ..............................................................5-5-1

Calculating a

Using Drag and Drop to Down a 3D Graph ........................................................5-5-3

z-value for Particular x- and y-values, or s- and t-values ..............5-5-2

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Chapter 6 Using the Sequence Application

6-1 Sequence Application Overview .......................................................... 6-1-1

Starting up the Sequence Application ................................................................6-1-1

Sequence Application Window ...........................................................................6-1-1

Sequence Application Menus and Buttons .........................................................6-1-2

Sequence Application Status Bar .......................................................................6-1-6

6-2 Inputting an Expression in the Sequence Application ...................... 6-2-1

Inputting Data on the Sequence Editor Window .................................................6-2-1

Inputting Data on the Sequence RUN Window ..................................................6-2-1

6-3 Recursive and Explicit Form of a Sequence ...................................... 6-3-1

Generating a Number Table ...............................................................................6-3-1

Graphing a Recursion .........................................................................................6-3-3

Determining the General Term of a Recursion Expression ................................6-3-5

Calculating the Sum of a Sequence ...................................................................6-3-6

6-4 Using LinkTrace .................................................................................... 6-4-1

6-5 Drawing a Cobweb Diagram ................................................................. 6-5-1

Chapter 7 Using the Statistics Application

7-1 Statistics Application Overview ........................................................... 7-1-1

Starting Up the Statistics Application ..................................................................7-1-2

Stat Editor Window Menus and Buttons .............................................................7-1-3

Stat Editor Window Status Bar ...........................................................................7-1-4

7-2 Using Stat Editor ................................................................................... 7-2-1

Basic List Operations ..........................................................................................7-2-1

Inputting Data into a List .....................................................................................7-2-4

Editing List Contents ...........................................................................................7-2-7

Sorting List Data .................................................................................................7-2-8

Controlling the Number of Displayed List Columns ............................................7-2-9

Clearing All Stat Editor Data ...............................................................................7-2-9

7-3 Before Trying to Draw a Statistical Graph ........................................... 7-3-1

Using the SetGraph Menu ..................................................................................7-3-1

Configuring StatGraph Setups ............................................................................7-3-2

7-4 Graphing Single-Variable Statistical Data ........................................... 7-4-1

Normal Probability Plot (NPPlot) ........................................................................7-4-1

Histogram Bar Graph (Histogram) ......................................................................7-4-2

Med-Box Plot (MedBox) .....................................................................................7-4-2

Normal Distribution Curve (NDist) ......................................................................7-4-3

Broken Line Graph (Broken) ...............................................................................7-4-4

7-5 Graphing Paired-Variable Statistical Data........................................... 7-5-1

Drawing a Scatter Plot and xy Line Graph .........................................................7-5-1

Drawing a Regression Graph (Curve Fitting) .....................................................7-5-2

Graphing Previously Calculated Regression Results .........................................7-5-4

Drawing a Linear Regression Graph ..................................................................7-5-5

Drawing a Med-Med Graph ................................................................................7-5-6

Drawing Quadratic, Cubic, and Quartic Regression Graphs ..............................7-5-7

Drawing a Logarithmic Regression Graph ..........................................................7-5-9

Drawing an Exponential Regression Graph ( Drawing an Exponential Regression Graph (

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y = a·e y = a·b

b · x

) ...................................7-5-10

)......................................7-5-11

Contents

Drawing a Power Regression Graph ( Drawing a Sinusoidal Regression Graph (

Drawing a Logistic Regression Graph (

Overlaying a Function Graph on a Statistical Graph ........................................7-5-15

y = a·x

) ................................................7-5-12

y = a·sin(b·x + c) + d) .....................7-5-13

1 +

) ........................................7-5-14

–b·x

a·

y =

7-6 Using the Statistical Graph Window Toolbar ...................................... 7-6-1

7-7 Performing Statistical Calculations ..................................................... 7-7-1

Viewing Single-variable Statistical Calculation Results ......................................7-7-1

Viewing Paired-variable Statistical Calculation Results ......................................7-7-4

Viewing Regression Calculation Results ............................................................7-7-5

Residual Calculation ...........................................................................................7-7-5

Copying a Regression Formula to the Graph & Table Application .....................7-7-6

7-8 Test, Confidence Interval, and Distribution Calculations .................. 7-8-1

Statistics Application Calculations ......................................................................7-8-1

Program Application Calculations .......................................................................7-8-1

7-9 Tests ....................................................................................................... 7-9-1

Test Command List ............................................................................................7-9-2

7-10 Confidence Intervals ........................................................................... 7-10-1

Confidence Interval Command List ..................................................................7-10-2

7-11 Distributions ........................................................................................ 7-11-1

Distribution Command List ...............................................................................7-11-3

7-12 Statistical System Variables ............................................................... 7-12-1

Chapter 8 Using the Geometry Application

8-1 Geometry Application Overview .......................................................... 8-1-1

Starting Up the Geometry Application ................................................................8-1-3

Geometry Application Menus and Buttons .........................................................8-1-3

8-2 Drawing Figures .................................................................................... 8-2-1

Using the Draw Menu .........................................................................................8-2-1

Inserting Text Strings into the Screen ..............................................................8-2-18

Attaching an Angle Measurement to a Figure ..................................................8-2-19

Displaying the Measurements of a Figure ........................................................8-2-22

Displaying the Result of a Calculation that Uses On-screen Measurement

Values ...............................................................................................................8-2-25

Using the Special Shape Submenu ..................................................................8-2-27

Using the Construct Submenu ..........................................................................8-2-30

Transformation Using a Matrix or Vector (General Transform) ........................8-2-37

8-3 Editing Figures ...................................................................................... 8-3-1

Selecting and Deselecting Figures .....................................................................8-3-1

Moving and Copying Figures ..............................................................................8-3-3

Pinning an Annotation on the Geometry Window ...............................................8-3-4

Specifying the Number Format of a Measurement .............................................8-3-5

Using the Measurement Box ..............................................................................8-3-6

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8-4 Controlling Geometry Window Appearance ....................................... 8-4-1

Configuring View Window Settings .....................................................................8-4-1

Selecting the Axis Setting ...................................................................................8-4-2

Toggling Integer Grid Display On and Off ..........................................................8-4-3

Zooming ..............................................................................................................8-4-3

Using Pan to Shift the Display Image .................................................................8-4-6

8-5 Working with Animations ..................................................................... 8-5-1

Using Animation Commands ..............................................................................8-5-1

8-6 Using the Geometry Application with Other Applications ................ 8-6-1

Drag and Drop ....................................................................................................8-6-1

Copy and Paste ..................................................................................................8-6-5

Dynamically Linked Data ....................................................................................8-6-5

8-7 Managing Geometry Application Files ................................................ 8-7-1

File Operations ...................................................................................................8-7-1

Folder Operations ...............................................................................................8-7-4

Chapter 9 Using the Numeric Solver Application

9-1 Numeric Solver Application Overview ................................................ 9-1-1

Starting Up the Numeric Solver Application .......................................................9-1-1

Numeric Solver Application Window ...................................................................9-1-1

Numeric Solver Menus and Buttons ...................................................................9-1-1

9-2 Using Numeric Solver ........................................................................... 9-2-1

Chapter 10 Using the eActivity Application

10-1 eActivity Application Overview .......................................................... 10-1-1

Starting Up the eActivity Application .................................................................10-1-1

eActivity Application Window ...........................................................................10-1-1

eActivity Application Menus and Buttons ..........................................................10-1-2

eActivity Application Status Bar ........................................................................10-1-4

eActivity Key Operations ..................................................................................10-1-4

10-2 Creating an eActivity .......................................................................... 10-2-1

Basic Steps for Creating an eActivity ...............................................................10-2-1

Managing eActivity Files ...................................................................................10-2-3

10-3 Inserting Data into an eActivity ......................................................... 10-3-1

Inserting a Text Row .........................................................................................10-3-1

Inserting a Calculation Row ..............................................................................10-3-3

Inserting an Application Data Strip ...................................................................10-3-5

Strip Help Text ................................................................................................10-3-14

Moving Information Between eActivity and Applications ................................10-3-15

Inserting a Geometry Link Row ......................................................................10-3-17

10-4 Working with eActivity Files ............................................................... 10-4-1

Opening an Existing eActivity ...........................................................................10-4-1

Browsing the Contents of an eActivity ..............................................................10-4-2

Editing the Contents of an eActivity ..................................................................10-4-2

Expanding an Application Data Strip ................................................................10-4-2

Modifying the Data in an Application Data Strip ...............................................10-4-3

Saving an Edited eActivity ................................................................................10-4-3

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10-5 Transferring eActivity Files ................................................................ 10-5-1

Transferring eActivity Files between Two ClassPad Units ...............................10-5-1

Transferring eActivity Files between a ClassPad Unit and a Computer ...........10-5-2

Chapter 11 Using the Presentation Application

11-1 Presentation Application Overview ................................................... 11-1-1

Starting Up the Presentation Application ..........................................................11-1-2

Presentation Application Window .....................................................................11-1-2

Presentation Application Menus and Buttons ...................................................11-1-3

Screen Capture Precautions ............................................................................11-1-4

11-2 Building a Presentation ...................................................................... 11-2-1

Adding a Blank Page to a Presentation ............................................................11-2-2

11-3 Managing Presentation Files ............................................................. 11-3-1

11-4 Playing a Presentation ........................................................................ 11-4-1

Using Auto Play ................................................................................................11-4-1

Using Manual Play ............................................................................................11-4-2

Using Repeat Play ............................................................................................11-4-3

11-5 Editing Presentation Pages ................................................................ 11-5-1

About the Editing Tool Palette ..........................................................................11-5-1

Entering the Editing Mode ................................................................................11-5-1

Editing Operations ............................................................................................11-5-3

Using the Eraser ...............................................................................................11-5-7

11-6 Configuring Presentation Preferences ............................................. 11-6-1

11-7 Presentation File Transfer .................................................................. 11-7-1

Chapter 12 Using the Program Application

12-1 Program Application Overview .......................................................... 12-1-1

Starting Up the Program Application ................................................................12-1-1

Program Loader Window ..................................................................................12-1-1

Program Editor Window ....................................................................................12-1-3

12-2 Creating a New Program .................................................................... 12-2-1

General Programming Steps ............................................................................12-2-1

Creating and Saving a Program .......................................................................12-2-1

Running a Program ..........................................................................................12-2-5

Pausing Program Execution .............................................................................12-2-6

Terminating Program Execution .......................................................................12-2-6

Configuring Parameter Variables and Inputting Their Values ..........................12-2-7

Using Subroutines ............................................................................................12-2-8

12-3 Debugging a Program ......................................................................... 12-3-1

Debugging After an Error Message Appears ....................................................12-3-1

Debugging a Program Following Unexpected Results .....................................12-3-1

Modifying an Existing Program to Create a New One ......................................12-3-2

Searching for Data Inside a Program ...............................................................12-3-5

12-4 Managing Files .................................................................................... 12-4-1

Renaming a File ...............................................................................................12-4-1

Deleting a Program ...........................................................................................12-4-1

Changing the File Type ....................................................................................12-4-2

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12-5 User-defined Functions ...................................................................... 12-5-1

Creating a New User-defined Function ............................................................12-5-1

Executing a User-defined Function ..................................................................12-5-3

Editing a User-defined Function .......................................................................12-5-4

Deleting a User-defined Function .....................................................................12-5-4

12-6 Program Command Reference .......................................................... 12-6-1

Using This Reference .......................................................................................12-6-1

Program Application Commands ......................................................................12-6-2

Application Command List ..............................................................................12-6-15

12-7 Including ClassPad Functions in Programs ..................................... 12-7-1

Including Graphing Functions in a Program ....................................................12-7-1

Using Conics Functions in a Program ..............................................................12-7-1

Including 3D Graphing Functions in a Program ................................................12-7-2

Including Table & Graph Functions in a Program .............................................12-7-2

Including Recursion Table and Recursion Graph Functions in a Program .......12-7-3

Including List Sort Functions in a Program .......................................................12-7-3

Including Statistical Graphing and Calculation Functions in a Program ...........12-7-4

Chapter 13 Using the Spreadsheet Application

13-1 Spreadsheet Application Overview ................................................... 13-1-1

Starting Up the Spreadsheet Application ..........................................................13-1-1

Spreadsheet Window .......................................................................................13-1-1

13-2 Spreadsheet Application Menus and Buttons .................................. 13-2-1

13-3 Basic Spreadsheet Window Operations ........................................... 13-3-1

About the Cell Cursor .......................................................................................13-3-1

Controlling Cell Cursor Movement ....................................................................13-3-1

Navigating Around the Spreadsheet Window ...................................................13-3-2

Hiding or Displaying the Scrollbars ...................................................................13-3-4

Selecting Cells ..................................................................................................13-3-5

Using the Cell Viewer Window .........................................................................13-3-6

13-4 Editing Cell Contents .......................................................................... 13-4-1

Edit Mode Screen .............................................................................................13-4-1

Entering the Edit Mode .....................................................................................13-4-2

Basic Data Input Steps .....................................................................................13-4-3

Inputting a Formula ...........................................................................................13-4-4

Inputting a Cell Reference ................................................................................13-4-6

Inputting a Constant .........................................................................................13-4-8

Using the Fill Sequence Command ..................................................................13-4-9

Cut and Copy ..................................................................................................13-4-11

Paste ..............................................................................................................13-4-11

Specifying Text or Calculation as the Data Type for a Particular Cell ............13-4-13

Using Drag and Drop to Copy Cell Data within a Spreadsheet ......................13-4-14

Using Drag and Drop to Obtain Spreadsheet Graph Data .............................13-4-16

Recalculating Spreadsheet Expressions ........................................................13-4-17

Importing and Exporting Variable Values .......................................................13-4-21

Searching for Data in a Spreadsheet .............................................................13-4-26

Sorting Spreadsheet Data ..............................................................................13-4-29

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13-5 Using the Spreadsheet Application with the eActivity

Application........................................................................................... 13-5-1

Drag and Drop ..................................................................................................13-5-1

13-6 Statistical Calculations ....................................................................... 13-6-1

13-7 Cell and List Calculations .................................................................. 13-7-1

Spreadsheet [List-Calculation] Submenu Basics ..............................................13-7-1

Cell Calculation and List Calculation Functions ................................................13-7-4

13-8 Formatting Cells and Data .................................................................. 13-8-1

Standard (Fractional) and Decimal (Approximate) Modes ...............................13-8-1

Plain Text and Bold Text ..................................................................................13-8-1

Text and Calculation Data Types .....................................................................13-8-1

Text Alignment ..................................................................................................13-8-2

Number Format ................................................................................................13-8-2

Changing the Width of a Column ......................................................................13-8-3

13-9 Graphing .............................................................................................. 13-9-1

Graph Menu ......................................................................................................13-9-1

Graph Window Menus and Toolbar ................................................................13-9-11

Basic Graphing Steps .....................................................................................13-9-13

Regression Graph Operations (Curve Fitting) ................................................13-9-15

Other Graph Window Operations ...................................................................13-9-16

Chapter 14 Using the Differential Equation Graph Application

14-1 Differential Equation Graph Application Overview .......................... 14-1-1

Differential Equation Graph Application Features ............................................14-1-1

Starting Up the Differential Equation Graph Application ...................................14-1-2

Differential Equation Graph Application Window ..............................................14-1-2

Differential Equation Editor Window Menus and Buttons .................................14-1-4

Differential Equation Graph Window Menus and Buttons ................................14-1-6

Differential Equation Graph Application Status Bar ..........................................14-1-8

14-2 Graphing a First Order Differential Equation.................................... 14-2-1

Inputting a First Order Differential Equation and Drawing a Slope Field ..........14-2-1

Inputting Initial Conditions and Graphing the Solution Curves of a

First Order Differential Equation .......................................................................14-2-3

Configuring Solution Curve Graph Settings ......................................................14-2-4

14-3 Graphing a Second Order Differential Equation .............................. 14-3-1

Drawing the Phase Plane of a Second Order Differential Equation .................14-3-1

Inputting Initial Conditions and Graphing the Solution Curve of a

Second Order Differential Equation ..................................................................14-3-2

14-4 Graphing an Nth-order Differential Equation ................................... 14-4-1

Inputting an Nth-order Differential Equation and Initial Conditions, and then

Graphing the Solutions .....................................................................................14-4-1

14-5 Drawing f(x) Type Function Graphs and Parametric Function

Graphs.................................................................................................. 14-5-1

Drawing an f (x) Type Function Graph ..............................................................14-5-1

Drawing a Parametric Function Graph .............................................................14-5-2

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14-6 Configuring Differential Equation Graph View Window

Parameters ........................................................................................... 14-6-1

Configuring Differential Equation Graph View Window Settings ......................14-6-1

Differential Equation Graph View Window Parameters ....................................14-6-2

14-7 Differential Equation Graph Window Operations ............................. 14-7-1

Graph Zooming and Scrolling ...........................................................................14-7-1

Configuring and Modifying Initial Conditions ....................................................14-7-1

Using Trace to Read Graph Coordinates .........................................................14-7-5

Graphing an Expression or Value by Dropping it into the Differential

Equation Graph Window ...................................................................................14-7-6

Chapter 15 Using the Financial Application

15-1 Financial Application Overview ......................................................... 15-1-1

Starting Up the Financial Application ................................................................15-1-1

Financial Application Menus and Buttons .........................................................15-1-2

Configuring Default Financial Application Settings ...........................................15-1-4

Financial Application Pages .............................................................................15-1-5

Financial Calculation Screen Basics ................................................................15-1-6

Variables ...........................................................................................................15-1-7

15-2 Simple Interest .................................................................................... 15-2-1

Simple Interest Fields .......................................................................................15-2-1

Financial Application Default Setup for Examples ............................................15-2-1

Calculation Formulas ........................................................................................15-2-2

15-3 Compound Interest ............................................................................. 15-3-1

Compound Interest Fields ................................................................................15-3-1

Financial Application Default Setup for Examples ............................................15-3-1

Calculation Formulas ........................................................................................15-3-3

15-4 Cash Flow ............................................................................................ 15-4-1

Cash Flow Fields ..............................................................................................15-4-1

Inputting Cash Flow Values ..............................................................................15-4-1

Calculation Formulas ........................................................................................15-4-4

15-5 Amortization ........................................................................................ 15-5-1

Amortization Fields ...........................................................................................15-5-1

Financial Application Default Setup for Examples ............................................15-5-1

Calculation Formulas ........................................................................................15-5-4

15-6 Interest Conversion............................................................................. 15-6-1

Interest Conversion Fields ................................................................................15-6-1

Calculation Formulas ........................................................................................15-6-2

15-7 Cost/Sell/Margin .................................................................................. 15-7-1

Cost/Sell/Margin Fields ....................................................................................15-7-1

Calculation Formulas ........................................................................................15-7-1

15-8 Day Count ............................................................................................ 15-8-1

Day Count Fields ..............................................................................................15-8-1

Financial Application Default Setup for Examples ............................................15-8-1

15-9 Depreciation ........................................................................................ 15-9-1

Depreciation Fields ...........................................................................................15-9-1

Calculation Formulas ........................................................................................15-9-3

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15-10 Bond Calculation............................................................................... 15-10-1

Bond Calculation Fields ..................................................................................15-10-1

Financial Application Default Setup for Examples ..........................................15-10-1

Calculation Formulas ......................................................................................15-10-4

15-11 Break-Even Point .............................................................................. 15-11-1

Break-Even Point Fields .................................................................................15-11-1

Financial Application Default Setup for Examples ..........................................15-11-1

Calculation Formulas ......................................................................................15-11-3

15-12 Margin of Safety ................................................................................ 15-12-1

Margin of Safety Fields ...................................................................................15-12-1

Calculation Formulas ......................................................................................15-12-1

15-13 Operating Leverage .......................................................................... 15-13-1

Operating Leverage Fields .............................................................................15-13-1

Calculation Formulas ......................................................................................15-13-1

15-14 Financial Leverage ............................................................................ 15-14-1

Financial Leverage Fields ...............................................................................15-14-1

Calculation Formulas ......................................................................................15-14-1

15-15 Combined Leverage .......................................................................... 15-15-1

Combined Leverage Fields .............................................................................15-15-1

Calculation Formulas ......................................................................................15-15-1

15-16 Quantity Conversion ......................................................................... 15-16-1

Quantity Conversion Fields ............................................................................15-16-1

Calculation Formulas ......................................................................................15-16-2

15-17 Performing Financial Calculations Using Commands ................... 15-17-1

Financial Application Setup Commands .........................................................15-17-1

Financial Calculation Commands ...................................................................15-17-1

Chapter 16 Configuring System Settings

16-1 System Setting Overview ................................................................... 16-1-1

Starting Up the System Application ..................................................................16-1-1

System Application Window .............................................................................16-1-1

System Application Menus and Buttons ...........................................................16-1-2

16-2 Managing Memory Usage ................................................................... 16-2-1

Memory Usage Sheets .....................................................................................16-2-1

Deleting Memory Usage Data ..........................................................................16-2-3

16-3 Using the Reset Dialog Box ............................................................... 16-3-1

16-4 Initializing Your ClassPad ................................................................... 16-4-1

16-5 Specifying the Display Language ...................................................... 16-5-1

16-6 Specifying the Font Set ...................................................................... 16-6-1

16-7 Specifying the Alphabetic Keyboard Arrangement ......................... 16-7-1

16-8 Viewing Version Information .............................................................. 16-8-1

16-9 Registering a User Name on a ClassPad .......................................... 16-9-1

16-10 Specifying the Complex Number Imaginary Unit ........................... 16-10-1

16-11 Assigning Shift Mode Key Operations to Hard Keys ..................... 16-11-1

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Contents

Appendix

1 Character Code Table ............................................................................α-1-1

2 System Variable Table ...........................................................................

3 Command and Function Index .............................................................

4 Graph Types and Executable Functions .............................................

5 Error Message Table .............................................................................

α-2-1 α-3-1 α-4-1 α-5-1

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About This User’s Guide

This section explains the symbols that are used in this user’s guide to represent keys, stylus operations, display elements, and other items you encounter while operating your ClassPad.

ClassPad Keypad and Icon Panel

2 Icon panel

smMrSh

3 Cursor key

Keyboard

ON/OFF

Clear

1 Keypad

(

)

(–)

1 Keypad

ClassPad keypad keys are represented by illustrations that look like the keys you need to press.

Example 1: Key within text

Press the k to show the soft keyboard.

Example 2: A series of key operations

c2+3-4+10E

When you see something like the above, simply press the keys in the indicated sequence, from left to right.

1 0

EXP

EXE

2 Icon panel

An operation that requires tapping an icon on the icon panel is indicated by an illustration of the icon.

Example 1: Tap m to display the application menu.

Example 2: Tap

3 Cursor key

Operation of the cursor key is represented by arrow buttons that indicate which part of the cursor key you need to press: f, c, d, e.

Example 1: Use d or e to move the cursor around the display.

Example 2: dddd

The above example means that you should press d four times.

to cancel an ongoing operation.

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About This User’s Guide

On-screen Keys, Menus, and Other Controllers

4 Menu bar

6 Soft keyboard

5 Toolbar

Tabs

4 Menu bar

Menu names and commands are indicated in text by enclosing them inside of brackets. The following examples show typical menu operations.

Example 1: Tap the O menu and then tap [Keyboard].

Example 2: Tap [Analysis], [Sketch], and then [Line].

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About This User’s Guide

5 Toolbar

Toolbar button operations are indicated by illustrations that look like the button you need to tap.

Example 1: Tap $ to graph the functions.

Example 2: Tap ( to open the Stat Editor window.

6 Soft keyboard

Key operations on the soft keyboards that appear when you press the k key are

indicated by illustrations that look like the keyboard keys. You can change from one keyboard type to another by tapping one of the tabs along the top of the soft keyboard.

Example 1: baa/gw

Example 2: ) Ngce*fw

Important!

• If a procedure in this User’s Guide requires use of a soft keyboard, press the k key to display the soft keyboard. The k key operation is not included as one of the procedure

steps. For more details about how to input data on the ClassPad, see “1-6 Input”.

Page Contents

Three-part page numbers are centered at the top of each page. The page number “1-4-2”, for example, indicates Chapter 1, Section 4, page 2.

Note

Display examples shown in this User’s Guide are intended for illustrative purposes only. The text, values, menus and buttons shown in the screen shots, and other details shown in this User’s Guide may be slightly different from what actually appears on your ClassPad screen.

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Chapter

Getting Acquainted

1-1 General Guide

1-2 Turning Power On and Off

1-3 Using the Icon Panel

1-4 Built-in Applications

1-5 Built-in Application Basic Operations

1-6 Input

1-7 Variables and Folders

1-8 Using the Variable Manager

1-9 Configuring Application Format Settings

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1-1 General Guide

1-1-1

General Guide

Front

6 7

smMrSh

eyboar

(

)

(–)

EXP

Side

ON/

Clea

쎹

−

EXE

Back

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1-1-2

General Guide

The numbers next to each of the items below correspond to the numbers in the illustration on page 1-1-1.

Front

Touch screen

The touch screen shows calculation formulas, calculation results, graphs and other information. The stylus that comes with the ClassPad can be used to input data and perform other operations by tapping directly on the touch screen.

Stylus

This stylus is specially designed for performing touch screen operations. The stylus slips into a holder on the right side of the ClassPad for storage when it is not in use. For more information, see “Using the Stylus” on page 1-1-4.

Icon panel

Tapping an icon executes the function assigned to it. See “1-3 Using the Icon Panel” for details.

Press this key to toggle ClassPad power on and off. See “1-2 Turning Power On and Off” for details.

• Pressing this key while inputting data clears all of the data you have input up to that point. For details, see “Input Basics” on page 1-6-3.

• Pressing the calculation. For details, see “Pausing and Terminating an Operation” on page 1-5-9.

Cursor key (

Use the cursor key to move the text cursor, selection highlighting, and other selection tools around the display.

Press this key to toggle display of the soft keyboard on and off. For details, see “Using the Soft Keyboard” on page 1-6-1.

key

key while a calculation operation is in progress interrupts the

fcde

)

• Pressing this key while inputting numeric, expression, or text data deletes one character to the left of the current cursor position. For details, see “Input Basics” on page 1-6-3.

• Pressing the For details, see “Pausing and Terminating an Operation” on page 1-5-9.

key

key while a calculation operation is in progress pauses the calculation.

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General Guide

Keypad

Use these keys to input the values and operators marked on them. See “1-6 Input” for details.

key

Press this key to execute a calculation operation or enter a return.

Side

3-pin data communication port

Connect the data communication cable here to communicate with another ClassPad unit or a CASIO Data Analyzer. See “Chapter 2 – Performing Data Communication” in the separate Hardware User’s Guide for details.

4-pin mini USB port

Connect the data communication cable here to exchange data with a computer. You can connect to a CASIO projector and project ClassPad screen contents. See “Chapter 2 – Performing Data Communication” in the separate Hardware User’s Guide for details.

Back

Battery compartment

Holds the four AAA-size batteries, or four nickel-metal hydride batteries that power the ClassPad. For details, see “Power Supply” in the separate Hardware User’s Guide.

RESTART button

Press this button to reset the ClassPad. For details, see “Performing the RAM Reset Operation” in the separate Hardware User’s Guide.

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General Guide

Using the Stylus

Most value and formula input, command executions, and other operations can be performed using the stylus.

Things you can do with the stylus

• This is equivalent to clicking with a mouse.

• To perform a tap operation, tap lightly with the stylus on the ClassPad’s touch screen.

Tap

• Tapping is used to display a menu, execute an on-screen button operation, make a window active, etc.

• This is equivalent to dragging with a mouse.

• To perform a drag operation, hold the tip of the stylus on the touch screen as you move the

Drag

stylus to another location.

• Dragging is used to change the setting of a slider or some other on-screen controller, to move a formula, etc.

Important!

• Be sure that you do not misplace or lose the stylus. Keep the stylus in the holder on the right side of the ClassPad whenever you are not using it.

• Do not allow the tip of the stylus to become damaged. Using a stylus with a damaged tip to perform touch screen operations can damage the touch screen.

• Use only the stylus that comes with your ClassPad or some other similar instrument to perform touch screen operations. Never use a pen, pencil or other writing instrument, which can damage the touch screen.

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1-2-1

Turning Power On and Off

1-2 Turning Power On and Off

Turning Power On

You can turn on the ClassPad either by pressing the screen with the stylus.

• Turning on the ClassPad displays the window that was on the display when you last turned it off. See “Resume Function” below.

• Note that you need to perform a few initial setup operations when you turn on the ClassPad the first time after purchasing it. For details, see “Getting Ready” in the separate Hardware User’s Guide.

key or by tapping the touch

Turning Power Off

To turn off the ClassPad, hold down the screen appears. For details about the ending screen, see “Specifying the Ending Screen Image” in the separate Hardware User’s Guide.

Important!

The ClassPad also has an Auto Power Off feature. This feature automatically turns the ClassPad off when it is idle for a specified amount of time. For details, see “Auto Power Off” in the separate Hardware User’s Guide.

key for about two seconds, or until the ending

Resume Function

Any time the ClassPad powers down (because you turn off power or because of Auto Power Off), the Resume function automatically backs up its current operational status and any data in RAM. If you turn ClassPad power back on, the Resume function restores the backed up operational status and RAM data.

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Using the Icon Panel

1-3 Using the Icon Panel

The icon panel of seven permanent icons is located below the touch screen. Tapping an icon executes the function assigned to it. The table below explains what you can do with the icon panel icons.

Function

When you want to do this: Tap this icon:

Display the O menu to configure settings, switch to the application

menu, etc. See “Using the O Menu” on page 1-5-4.

Display the application menu

See “1-4 Built-in Applications” for details.

Start the Main application

See “Chapter 2 – Using the Main Application” for details.

Resize the currently active window (when there are two windows

displayed) so it fills the entire display, or return to the dual window display again See “Using a Dual Window Display” on page 1-5-1.

Swap the upper window and lower window (when there are two

windows displayed) See “Using a Dual Window Display” on page 1-5-1.

Capture the currently displayed screen for transfer to a computer or for

use with the ClassPad’s presentation application See “Chapter 11 – Using the Presentation Application” and “Chapter 2 – Performing Data Communication” in the separate Hardware User’s Guide.

Perform the same operation as a computer’s ESC key

The actual operation performed when this icon is tapped depends on the application you are currently using.

Tip

Tapping the use to perform the following operations.

• Move an icon (page 1-4-3)

• Swap two icons (page 1-4-4)

• Adjust touch panel alignment (page 1-4-4)

icon while the application menu is on the screen will display a menu that you can

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Built-in Applications

1-4 Built-in Applications

Tapping The table below shows the icon menu names of the built-in applications, and explains what

you can do with each application.

To perform this type of operation: Select this icon: See Chapter:

• General calculations, including function calculations

• Matrix calculations

• Computer Algebra System

Access the eActivity function

•

• Create a list

• Perform statistical calculations

• Draw a statistical graph

• Input data into a spreadsheet

• Manipulate spreadsheet data

• Graph spreadsheet data

• Register a function and create a table of solutions by substituting different values for the function’s variables

• Draw a graph

on the icon panel displays the application menu.

I R T

• Graph the 3D function

• Draw geometric figures

• Build animated figures

• Draw the graph of a conics section

• Draw vector fields and solution curves to explore differential equations

• Obtain the value of any variable in an equation,

without transforming or simplifying the equation

• Perform sequence calculations

• Solve recursion expressions

• Perform simple interest, compound interest, and other financial calculations

• Register a file name in the programming area

• Input a program or run a program

z = f(x,y)

• Create and run a presentation using ClassPad

application window

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1-4-2

Built-in Applications

To perform this type of operation: Select this icon:

• Control the optionally available EA-200 Data Analyzer.

• Exchange data with another ClassPad, a computer, or another device

• Clear the memory

• Adjust contrast

• Configure other system settings

Starting a Built-in Application

Perform the steps below to start a built-in application.

ClassPad Operation

(1) On the icon panel, tap

to display the application menu.

See Chapter:

See the separate E-Con User’s Guide.

See Chapter 2 in the separate Hardware User’s Guide.

Scroll up button

Scrollbar

Scroll down button

Application Menu

(2) If you cannot see the icon of the application you want on the menu, tap the scroll

buttons or drag the scroll bar to bring other icons into view.

(3) Tap an icon to start its application.

Tip

• You can also start the Main application by tapping M on the icon panel. See “1-3 Using the Icon Panel” for details.

Application Menu Operations

The following describes the various types of operations you can perform while the application menu is on the display.

• Starting an application See “Starting a Built-in Application” above.

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1-4-3

Built-in Applications

• Displaying applications according to group (Additional Applications, All Applications) See “Using Application Groups” below.

• Moving or swapping icons See “Moving an Icon” below, and “Swapping Two Icons” on page 1-4-4.

• Deleting an application See “Deleting an Application” on page

Using Application Groups

You can use application groups to specify the type of applications that appear on the application menu. To select an application group, tap the box in the upper right of the application menu, and then select the group you want from the list that appears.

To display these icons: Select this application group:

-2-1 in the separate Hardware User’s Guide.

Add-in applications only Additional

All applications All

Add-in applications above built-in applications Add-ins First

Tip

• Nothing appears on the application menu if you select the “Additional” group while there are no add-in applications installed on the ClassPad.

Moving an Icon

You can use the procedure below to move an icon to a different location on the application menu.

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1-4-4

Built-in Applications

ClassPad Operation

(1) On the icon panel, tap m to display the application menu.

(2) Tap

• This opens a menu of setting options.

(3) Tap [Move Icon].

(4) Tap the icon you want to move (

• This selects the icon.

(5) Tap the icon that you want the first icon to follow (

• This moves the icon.

Swapping Two Icons

Perform the following steps to swap two icons on the application menu.

ClassPad Operation

(1) On the icon panel, tap m to display the application menu.

(2) Tap

• This opens a menu of setting options.

(3) Tap [Swap Icon].

at the top left of the application menu.

in this example).

at the top left of the application menu.

in this example).

(4) Tap one of the icons.

• This selects the icon.

(5) Tap the other icon (the one you want to swap with).

• This swaps the icons.

Adjusting Touch Panel Alignment

Perform the following steps to align the touch panel.

ClassPad Operation

(1) On the icon panel, tap m to display the application menu.

(2) Tap

• This opens a menu of setting options.

(3) Tap [Touch Panel Alignment].

• This displays the Touch Panel Alignment screen.

(4) Use the stylus to tap the center of each of the four crosses as they appear on the

screen.

• Tapping the center of the fourth cross completes touch panel alignment and returns you to the application menu.

at the top left of the application menu.

• When aligning your ClassPad try to tap the exact center of each cross.

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Built-in Application Basic Operations

1-5 Built-in Application Basic Operations

This section explains basic information and operations that are common to all of the built-in applications.

Application Window

The following shows the basic configuration of a built-in application window.

Menu bar

}

Toolbar

}

Application window

Soft keyboard (page 1-6-1)

Status bar

}

Using a Dual Window Display

Many applications split the display between an upper window and a lower window, each of which shows different information. The sample screenshot below is from the Conics application, which uses the upper window for input of expressions, and the lower window for graphing.

Upper window

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Lower window

1-5-2

Built-in Application Basic Operations

When using two windows, the currently selected window (the one where you can perform operations) is called the “active window”. The menu bar, toolbar, and status bar contents are all applicable to the active window. The active window is indicated by a thick boundary around it.

To switch the active window

While a dual window is on the display, tap anywhere inside the window that does not have a thick boundary around it to make it the active window.

• Note that you cannot switch the active window while an operation is being performed in the current active window.

To resize the active window so it fills the display

While a dual window is on the display, tap r. This causes the active window to fill the display. To return to the dual window display, tap r again.

To swap the upper and lower windows

While a dual window is on the display, tap S. This causes the upper window to become the lower window, and vice versa. Swapping windows does not have any affect on their active status. If the upper window is active when you tap S for example, the window will remain active after it becomes the lower window.

Tip

• When you tap r button while a dual window is on the display, the currently active window will

fill the display, but the other (inactive) window does not close. It remains open, hidden behind the active window. This means you can tap active window, and send the current active window to the background.

To close the active windows

While a dual window is on the display, tap at to top right corner of the window to close the active window, which causes the other (inactive) window to fill the display.

to bring the hidden window forward and make it the

Tip

• When the close ( ) button is dimmed, it means that the active window cannot be closed for some

reason.

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Built-in Application Basic Operations

Using the Menu Bar

The menu bar appears along the top of the window of each application. It shows the menus that you can access for the currently active window.

Menu bar

}

Tapping the menu bar menu displays its commands, options, and settings from which you can choose the one you want. Some menu items have a single selection as shown in Example 1, below, while other menu items display a submenu of selections from which you can choose as shown in Example 2.

Example 1: Choosing the [Edit] menu’s [Copy] item

ClassPad Operation

(1) Tap [Edit]. (2) Tap [Copy].

• This displays the contents of the • This performs a copy operation. [Edit] menu.

Example 2: Choosing [lim], which is on the [Calculation] submenu of the [Action] menu.

ClassPad Operation

(1) Tap [Action]. (2) Tap [Calculation].

• This displays the contents of the [Action] menu.

(3) Tap [lim].

• This displays the contents of the

[Calculation] submenu.

• This inputs “lim(”.

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Built-in Application Basic Operations

Using the

The O menu appears at the top left of the window of each application, except for the System application. You can access the O menu by tapping bar’s O menu.

The following describes all of the items that appear on the O menu.

Menu Items

1 2

on the icon panel, or by tapping the menu

6 7

Tapping [Variable Manager] starts up the Variable Manager. See “1-8 Using the Variable

Manager” for details.

Tapping [View Window] displays a dialog box for configuring the display range and other

graph settings. For details, see the explanations for the various applications with graphing capabilities (Graph & Table, Conics, 3D Graph, Statistics, etc.)

Tapping a menu selection displays a dialog box for configuring the corresponding setup

settings. See “1-9 Configuring Application Format Settings” for details.

Tapping [Default Setup] returns all settings to their initial defaults (except for the current

folder setting). See “1-9 Configuring Application Format Settings” for details.

This area shows a list of all of the windows that can be accessed from the current

application (Graph & Table application in this example). Tapping a menu selection displays the corresponding window and makes it active. For details, see “Using the O Menu to Access Windows” on page 1-5-5.

Tap [Keyboard] to toggle display of the soft keyboard on and off.

Tapping [Close] closes the currently active window, except in the following cases.

• When only one window is on the display

• When the currently active window cannot be closed by the application being used

You cannot, for example, close the Graph Editor window from the Graph & Table application.

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Built-in Application Basic Operations

Using the

Most ClassPad applications support simultaneous display of two windows. When two windows are on the display, the one with a thick selection boundary around it is the active window. The displayed menu and toolbar are the ones for the currently active window. You can use the O menu to change the active window and to display the window you want.

Window Selection Example (Graph & Table)

Menu to Access Windows

(1) Graph window is active.

(4) Tap O and then

[Stat Editor].

(2) Tap O and then

[Graph Editor].

(5) Stat Editor window

appears and becomes active.

(3) Graph Editor window

becomes active.

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Built-in Application Basic Operations

Using Check Boxes

A check box shows the current status of a dialog box option that can be turned on or off. An option is turned on (selected) when its check box has a check mark inside it. An option is turned off when a check box is cleared. Tapping a check box toggles the option on (checked) and off (cleared).

Option turned offOption turned on

Check boxes also appear on menus. Menu check boxes operate the same way as dialog box check boxes.

Option turned on

Option turned off

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Built-in Application Basic Operations

Using Option Buttons

Option buttons are used on dialog boxes that present you with a list of options from which you can select only one. A black option button indicates the currently selected option, while the buttons of the options that are not selected are white.

Tap “Français”. This selects “Français” and

deselects “English”.

Option buttons also appear on menus. Menu option buttons operate the same way as dialog box option buttons.

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Built-in Application Basic Operations

Using the Toolbar

The toolbar is located directly underneath the menu bar of an application window. It contains the buttons for the currently active window.

Toolbar

}

Toolbar Buttons

Normally, you tap a button to execute the command assigned to it. Some buttons, however, have a down arrow v next to them. Tapping the arrow displays a list of options from which you can select.

List of options

Toggling between Multiple Toolbars

With some applications, not all of the buttons can fit on a single toolbar. When this happens, the buttons that cannot fit are placed onto a second toolbar. When there are two toolbars, each of them has an arrow button on the far right. Toolbar 1 has a u button while toolbar 2 has a t button. Tapping an arrow button toggles between the two toolbars.

Tap here to toggle

Tip

• The explanations in this manual make no distinction between toolbar 1 and toolbar 2. Even if a button is located on toolbar 2 (like the instructed simply to “tap

”.

button in the above example) you will be

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Built-in Application Basic Operations

Interpreting Status Bar Information

The status bar appears along the bottom of the window of each application.

Status bar

Information about current application

Tip

• You can change the configuration of a setting indicated in the status bar by tapping it. Tapping

“Cplx” (indicating complex number calculations) while the Main application is running will toggle the setting to “Real” (indicating real number calculations). Tapping again will toggle back to “Cplx”. For information about application-specific information that appears in the status bar, see the sections in this manual that describes each application.

Battery level indicator

....................... full

....................... medium

....................... low

This indicator flashes between

appears here to indicate when an operation is paused.

and while an operation is being performed.

Important!

• Be sure to replace batteries as soon as possible whenever the battery level indicator shows

(medium).

• Replace batteries immediately whenever the battery level indicator shows (low). At this level, you will not be able to perform data communication or other functions.

• The following message indicates that batteries are about to die. Replace batteries immediately whenever this message appears.

Batteries are extremely low! Replace batteries immediately!

• See the separate Hardware User’s Guide for details about replacing batteries.

Pausing and Terminating an Operation

Many of the built-in applications provide operations to pause and terminate (break) expression processing, graphing, and other operations.

Pausing an Operation

Pressing the performed pauses the operation. Pressing

key while an expression processing, graphing, or other operation is being

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again resumes the operation.

1-5-10

Built-in Application Basic Operations

Example: To pause a graphing operation and then resume it

ClassPad Operation

(1) Use the Graph & Table application to draw a graph.

• For details about graphing, see “Chapter 3 – Using the Graph & Table Application”.

(2) While the graph is being drawn, press the

• This pauses the draw operation and displays the right side of the status bar.

(3) To resume the operation, press the

• This resumes the draw operation, which continues until the graph is complete.

Terminating an Operation (Break)

Pressing the

key while an expression processing, graphing, or other operation is being

performed terminates the operation.

key.

key again.

Draw is paused at the point

where

is pressed.

Example: To terminate a graphing operation

ClassPad Operation

(1) Use the Graph & Table application to draw a graph.

• For details about graphing, see “Chapter 3 – Using the Graph & Table Application”.

(2) While the graph is being drawn, press the

key.

• This terminates the draw operation and displays the Break dialog box, indicating the Break state.

Break dialog box

(3) To exit the Break state, tap the [OK] button.

• This returns the ClassPad to its status before you started the graphing operation.

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1-6 Input

You can input data on the ClassPad using its keypad or by using the on-screen soft keyboard. Virtually all data input required by your ClassPad can be performed using the soft keyboard. The keypad keys are used for input of frequently used data like numbers, arithmetic operators, etc.

Using the Soft Keyboard

The soft keyboard is displayed in the lower part of the touch screen. A variety of different special-purpose soft keyboard styles help to take much of the work out of data input.

To display the soft keyboard

When the soft keyboard is not on the touch screen, press the

menu and then tap [Keyboard]. This causes the soft keyboard to appear.

Press

key, or tap the

The soft keyboard appears.

• Pressing the

• The icon panel’s r icon is disabled while the soft keyboard is on the display. For details about r, see “Using a Dual Window Display” on page 1-5-1.

key again hides the soft keyboard.

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Soft Keyboard Styles

There are four different soft keyboard styles as described below.

• Math (mth) Keyboard

Pressing

will display the keyboard that you last displayed while working in that application. If you quit the application and go into another application, then the

(default) soft keyboard appears.

You can use the math (mth) keyboard to input values,

variables, and expressions. Tap each lower button to see additional characters, for example tap

. For more

information, see “Using the Math (mth) Keyboard” on page 1-6-8.

• Alphabet (abc) Keyboard

Use this keyboard to input alphabetic characters, Greek

characters, and other characters, as well as logical symbols and other numeric symbols. Tap one of the buttons along the bottom of the keyboard to see additional characters, for example, tap

. For more information, see “Using the

Alphabet (abc) Keyboard” on page 1-6-10.

• Catalog (cat) Keyboard

This keyboard provides a scrollable list that can be used

to input built-in functions, built-in commands, system variables, and user-defined functions. Tap a command to select it and then tap it again to insert it. Selecting an item from the Form list changes the available commands. For more information, see “Using the Catalog (cat) Keyboard” on page 1-6-13.

• 2D Keyboard

This keyboard displays various templates for natural input

of fractions, exponential values, matrices, differential and integral calculus expressions, etc. Note that natural input is available in most ClassPad applications. Natural input cannot be used in the geometry measurement box or when entering data into a list. For more information, see “Using the 2D Keyboard” on page 1-6-15.

Tip

• 2D math symbols are easy to use. Just tap the image of the symbol you would like to use and it will appear in your application.

• 2D math symbols can be used in most applications.

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1-6-3 Input

Selecting a Soft Keyboard Style

Tap one of the tabs along the top of the soft keyboard ( the keyboard style you want.

Tap here.

To display the 2D keyboard

Input Basics

9, 0, (

, or

)

) to select

This section includes a number of examples that illustrate how to perform basic input procedures. All of the procedures assume the following.

• The Main application is running.

For details, see “Starting a Built-in Application” on page 1-4-2.

• The soft keyboard is displayed.

For details, see “Using the Soft Keyboard” on page 1-6-1.

Inputting a Calculation Expression

You can input a calculation expression just as it is written, and press the E key to execute it. The ClassPad automatically determines the priority sequence of addition, subtraction, multiplication, division, and parenthetical expressions.

• Before starting any calculation, be sure to clear the ClassPad by pressing

See Chapter 2 for more information about inputting expressions.

• Use the z or - key to input the minus sign before a negative value.

Example 1: To simplify –2 + 3 – 4 + 10

ClassPad Operation

Using the keypad keys

cz2+3-4+10E

Using the soft keyboard

Tap the keys of the math (mth) keyboard or the 2D keyboard to input the calculation expression.

When the soft keyboard is not on the touch screen, press the menu and then tap [Keyboard]. This causes the soft keyboard to appear on the display.

c+d-e+ba

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key, or tap the O

1-6-4 Input

Example 2: To simplify 2 (5 + 4) ÷ (23 × 5)

ClassPad Operation

Using the keypad keys

c2(5+4)/(23*5)E

Using the soft keyboard Tap the keys of the math (mth) keyboard or the 2D keyboard to input the calculation

expression.

(or

)

c(f+e)/(cd*f)

Tip

• As shown in Example 1 and Example 2, you can input simple arithmetic calculations using either the keypad keys or the soft keyboard. Input using the soft keyboard is required to input higher level calculation expressions, functions, variables, etc.

Editing Input

The following are the different techniques you can use to edit your input.

To change something right after you input it

When the cursor is located at the end of your input, press operator you want to edit.

Example: To change the expression 369 × 3 to 369 × 2

c369*3

(1)

to delete the character or

(2)

(3)

Tip

• Or, drag your stylus across 3 to select it and input 2.

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1-6-5 Input

To delete an unneeded key operation

Use d and e to move the cursor to the location immediately to the right of the key operation you want to delete, and then press

. Each press of

deletes one

command to the left of the cursor.

Example: To change the expression 369 × × 2 to 369 × 2

c369**2

(1)

(2)

Tip

• You can move the cursor without using the cursor key by tapping at the destination with the

stylus. This causes the cursor to jump to the location where you tap.

To correct a calculation expression

Use d and e to move the cursor to the location immediately to the right of the location you want to correct, and then press

Example: To correct cos(60) so it becomes sin(60)

(1) Use the mathematics (mth) keyboard to input “cos(60)”.

Tapping the T key causes it to change to I and displays a key set for inputting trigonometric functions.

ga)

(2) Move the cursor to the location immediately to the right of “cos(”.

ddd

(3) Delete “cos(”.

KKKK

(4) Input “sin(”.

(5) Tap

to return to the initial math (mth) key set. See “Using the Math (mth)

Keyboard” on page 1-6-8 for details.

Tip

• Or, drag your stylus across “cos(” to select it and input “sin(”.

After you make all of the changes you want, press E to calculate the result. To continue inputting the calculation, press e to move the cursor to the end of the calculation, and input what you want.

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1-6-6 Input

To insert new input into the middle of an existing calculation expression

Use d or e to move the cursor to the location where you want to insert new input, and then input what you want.

Example: To change 2.36

(1)

(2)

dddddd

c.dg

to sin(2.362)

(3)

Tip

• You can move the cursor without using the cursor key by tapping at the destination with the

stylus. This causes the cursor to jump to the location where you tap.

To replace a range of input with new input

After you drag the stylus across the range of input that you want to replace, enter the new input.

Example: To replace the “234” of “1234567” with “0”.

(1) Input “1234567”.

c1234567

(2) Drag the stylus across “234” to select it.

(3) Input “0”.

Tip

• You can perform d and key.

key operations by pressing the corresponding keypad key or soft

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1-6-7 Input

Using the Clipboard for Copy and Paste

You can copy (or cut) a function, command, or other input to the ClassPad’s clipboard, and then paste the clipboard contents at another location.

To copy characters

(1) Drag the stylus across the characters you

want to copy to select them.

(2) On the soft keyboard, tap G.

• This puts a copy of the selected characters onto the clipboard.

The selected characters are not changed when you copy them.

Tip

• You can also copy characters by tapping the [Edit] menu and then tap [Copy].

To cut characters

(1) Drag the stylus across the characters you want to

cut to select them.

(2) On the soft keyboard, tap

• This moves the selected characters onto the clipboard.

Cutting causes the original characters to be deleted.

Tip

• Performing a copy or cut operation causes the clipboard contents to be replaced by the newly copied or cut characters.

• You can also cut characters by tapping the [Edit] menu and then tap [Cut].

To paste the clipboard contents

(1) Move the cursor to the location where you want to

paste the clipboard contents.

(2) On the soft keyboard, tap H.

• This pastes the clipboard contents at the current cursor location.

Tip

• The clipboard contents remain on the clipboard after you paste them. This means you can paste the current contents as many times as you like.

• You can also paste the clipboard contents by tapping the [Edit] menu and then tap [Paste].

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1-6-8 Input

Copying and pasting in the message box

The “message box” is a 1-line input and display area under the Graph window (see Chapter 3).

Message box

You can use the two buttons to the right of the message box to copy the message box contents (G button), or to paste the clipboard contents to the message box (H button). Copy and paste are performed the same way as the copy and paste operations using the soft keyboard.

Advanced Soft Keyboard Operations

As explained in “Using the Soft Keyboard” on page 1-6-1, there are four soft keyboard types: the math (mth) keyboard, the alphabet (abc) keyboard, the catalog (cat) keyboard, and the 2D math (2D) keyboard. This section provides more detailed information about soft keyboard operations and the various key sets available with each soft keyboard.

• All of the explanations in this section start from the initial key set of each keyboard.

Using the Math (mth) Keyboard

The math (mth) keyboard is for inputting calculation expressions and numeric expressions. In addition to the initial math (mth) key set, you can also select from among four other key sets named

Initial math (mth) keyboard key set

If you stay in the same application, the keyboard that you used last will appear when you press the

(trigonometry),

key.

(calculus),

(option), and V (variable).

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1-6-9 Input

key set

Tapping the

softkey to

key displays keys for inputting trigonometric functions, and changes the

. You can tap this key to toggle between

and the default

keyboard. Tapping the = (hyperbolic) key switches to a key set for inputting hyperbolic functions. Tap the = key again to return to the regular

u -

Tapping the

key set

key displays keys for inputting differential and integral calculus expressions, permutations, etc., and changes the between

and the default

keyboard.

softkey to

←

→

key set.

. You can tap this key to toggle

Tip

• Tapping the key inputs the “solve” function, while tapping the key inputs the “dSolve”

function. See pages 2-8-43 and 2-8-44 for information about these functions.

• For information about each of functions or symbols, see “2-4 Function Calculations”.

u K

Tapping the changes the

key set

keyboard.

key displays keys for inputting “<”, “≠”, and other special operators, and

softkey to

. You can tap this key to toggle between

and the default

Tip

• Tapping the key inputs the “rSolve” function. See page 6-3-5 for information about this

function.

• For information about each of the functions and symbols, see “2-4 Function Calculations”.

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Input

key set

u V

Tapping the V key displays keys for inputting single-character variables, and changes the V softkey to

. You can tap this key to toggle between V and the default

keyboard. Tapping the E key switches to a key set for inputting upper-case singlecharacter variables.

←

→

Tip

• As its name suggests, a single-character variable is a variable name that consists of a single

character like “ character variable. To input multiple-character variable names like “ab” or multiple-character strings, you must use the alphabet (abc) keyboard. For more information, see “Using Singlecharacter Variables” on page 1-6-12.

• For information about the D key that appears in the lower right of all of the math (mth) keyboard

key sets, see “Using the Answer Variable (ans)” on page 2-2-2.

” or “x”. Each character you input on the V keyboard is treated as a single-

Using the Alphabet (abc) Keyboard

In addition of the initial alphabet (abc) key set, you can also select from among three other key sets, within alphabet (abc), named symbols), and

Initial alphabet (abc) keyboard key set

(extra symbols).

(character symbols),

(mathematics

This keyboard is for inputting lower-case alphabetic characters. Tap L to shift the keyboard or

to caps lock the keyboard when you want to input upper-case characters.

• Note that the initial alphabet (abc) keyboard uses the qwerty key arrangement, which is

similar to a computer keyboard. You can also change to an azerty or qwertz arrangement. See “16-7 Specifying the Alphabetic Keyboard Arrangement”.

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Input

key set

Use the

Tap the J and K buttons to scroll to additional keys. Tapping

key set to input Greek characters, Cyrillic characters, and accented characters.

caps locks the keyboard

for input of upper-case characters.

• Tap

u n

to return to the initial alphabet (abc) key set.

key set

This key set contains some of the mathematical expression symbols that are also available on the math (mth) keyboard. Tap the J and K buttons to scroll to additional keys.

• Tap

to return to the initial alphabet (abc) key set.

key set

Use this key set to input punctuation and symbols. Tap the J and K buttons to scroll to additional keys.

• Tap

to return to the initial alphabet (abc) key set.

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Input

Using Single-character Variables

As its name suggests, a single-character variable is a variable name that consists of a single character like “

than input of a series of multiple characters (like “abc”).

To input a single-character variable name

Any character you input using any one of the following techniques is always treated as a single-character variable.

• Tapping any key in the math (mth) keyboard’s V key set (page 1-6-10)

• Tapping any key in the 2D keyboard’s V key set (page 1-6-17)

• Tapping the X, Y, Z or [ key to the left of the 9 key of the math (mth) keyboard or

2D keyboard

• Pressing the x, y, or Z keypad key

If you use the above key operations to input a series of characters, each one is treated as a single-character variable. Inputting A, B, C, for example, is treated as the mathematical expression a × b × c, and not as the characters “abc”.

” or “x”. Input of single-character variable names is subject to different rules

Tip

• The single-character variables described above make it possible for you to perform calculations

as they appear in your textbook.

Example 1:

Example 2:

9VABC

2xyE

Tip

• When you input a single-character variable, its name appears on the display as an italicized bold

character. This is simply to let you know that the letter is a single-character variable name.

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Input

To input a series of multiple characters

A series of multiple characters (like “list1”) can be used for variable names, program commands, comment text, etc. Always use the alphabet (abc) keyboard when you want to input a series of characters.

Example:

0abc

You can also use the alphabet (abc) keyboard to input single-character variable names. To do so, simply input a single character, or follow a single character with a mathematical operator.

Example:

0a*b+c

Tip

• A single-character variable you input using the alphabet (abc) keyboard is identical to a single-

character variable you input using the math (mth) keyboard.

Using the Catalog (cat) Keyboard

The “Form” menu of the catalog keyboard lets you select one of the following five categories: [Func] (built-in functions on pages 2-4-2 and 2-8-1), [Cmd] (built-in commands and operators on pages 1-7-4 and 12-6-1), [Sys] (system variables on page α-2-1), [User] (user-defined functions on page 12-5-1), and [All] (all commands, functions, etc.). After selecting a category, you can choose the item you want from the alphabetized list that appears on the catalog (cat) keyboard.

Tip

• Note that user-defined variables and user-defined programs cannot be input using the catalog (cat)

keyboard. Use the Variable Manager (page 1-8-1) instead.

• A user-defined function must be stored in the “library” folder to appear in the catalog (cat)

keyboard list when the [User] category is selected.

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Catalog (cat) keyboard configuration

1-6-14

Input

This is an alphabetized list of commands,

functions, and other items available in the category currently selected with “Form”.

Tapping a letter button displays the

commands, functions, or other items that begin with that letter.

To use the catalog (cat) keyboard

Example: To input the built-in “Plot” command

Tap the down button and then select the

category you want ([Func], [Cmd], [Sys], [User], or [All]) from the list that appears.

Tap this key to input the item that is

currently selected in the alphabetized list.

(1) Tap

to display the catalog (cat) keyboard.

(

(2) Tap the “Form” down arrow button v and then select [Cmd] from the list of categories

that appears.

(3) Tap the u button in the lower right corner until the P key is visible.

(4) Tap P.

(5) In the alphabetized list, tap “Plot”.

(6) Tap [INPUT] to input the command.

Tip

• Instead of tapping [INPUT] in step (6), you could also tap the command you selected in step (5) a second time to input the command.

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Input

Using the 2D Keyboard

The 2D keyboard provides you with a number of templates that let you input fractions, exponential values,

th roots, matrices, differentials, integrals, and other complex

expressions as they appear in your textbook. It also includes a V key set that you can use to input single-character variables like the ones you can input with the math (mth) keyboard.

Initial 2D keyboard key set

This key set lets you input fractions, exponential values, nth roots, etc. as they appear in your textbook.

Tip

• For information about each function or symbol, see “2-4 Function Calculations”.

• Use the

• Use the information.

u -

key set

Tapping the place of the

The following are the mathematical expressions you can input with this 2D keyboard.

To input this: Use these keys: For more information, see:

key to input the piecewise function template. See page 2-4-12 for more information.

key to input the simultaneous equations template. See page 2-8-43 for more

key displays a keyboard like the one shown below, which has a

key. Tapping

returns to the initial 2D keyboard.

key in

Matrix templates

Limit template

Sum template

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“Matrix and Vector Calculations” on page 2-6-1.

“lim” under “Using the Calculation Submenu” on page 2-8-15.

“Σ” under “Using the Calculation Submenu” on page 2-8-15.

1-6-16

Input

To input this: Use these keys: For more information, see:

Sum of product template

Differential coefficient template ,

Integration template

ADV

key set

Tapping the place of the

ADV

key displays a keyboard like the one shown below, which has a

ADV

key. Tapping

returns to the initial 2D keyboard.

“Π” under “Using the Calculation Submenu” on page 2-8-15.

“diff” under “Using the Calculation Submenu” on page 2-8-13.

” under “Using the Calculation

“

∫

Submenu” on page 2-8-14.

The following are the mathematical expressions you can input with this 2D keyboard.

key in

To input this: Use these keys: For more information, see:

Fourier transform template

Inverse Fourier transform template

Laplace transform template

Inverse Laplace transform template

Gamma function

Delta function

-delta function

Heaviside function

“fourier” under “Using the Advanced Submenu” on page 2-8-9.

“invFourier” under “Using the Advanced Submenu” on page 2-8-9.

“laplace” under “Using the Advanced Submenu” on page 2-8-8.

“invLaplace” under “Using the Advanced Submenu” on page 2-8-8.

“Gamma Function” on page 2-4-18.

“Dirac Delta Function” on page 2-4-16.

Delta Function” on page 2-4-16.

“

“Heaviside Unit Step Function” on page 2-4-17.

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1-6-17

Input

key set

u V

Tapping the V key displays keys for inputting single-character variables, and changes the

softkey to

Tapping the

. You can tap this key to toggle between V and the initial 2D keyboard.

key switches to a key set for inputting upper-case single-character

variables.

←

→

Tip

• As its name suggests, a single-character variable is a variable name that consists of a single character like “

character variable. You cannot use the V keyboard to input multiple-character variable names like “ab” or multiple-character strings. You must use the alphabet (abc) keyboard when you want to input a multiple-character string. For more information, see “Using Single-character Variables” on page 1-6-12.

• For information about the D key that appears in the lower right of all of the 2D keyboard key sets, see “Using the Answer Variable (ans)” on page 2-2-2.

• Note that natural input is available in most applications of the ClassPad. Natural input cannot be used in the geometry measurement box or when entering data into a list.

” or “x”. Each character you input on the V keyboard is treated as a single-

To use the 2D keyboard for natural input

Example 1: To input +

(1) On the application menu, tap

(2) Press the

(3) Press the

(4) Tap

c k

and then tap b to input the numerator.

key.

key, and then tap

to start the Main application.

to display the 2D keyboard.

)

(5) Tap the input box of the denominator to move the

cursor there, or press c and then tap f.

(6) Press e to move the cursor to the right side of 1/5.

• Instead of using e to move the cursor, you could also tap with the stylus at the cursor destination.

(7) Tap +.

(8) Tap

, and then repeat steps (4) through (6) to

input 3/7.

(9) After everything is the way you want, press E.

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Input

Tip

• If you want your ClassPad to evaluate a calculation expression and display a result in the eActivity application, you must input the calculation in a calculation row. See “Inserting a Calculation Row” on page 10-3-3.

Example 2: To input

k = 1

(1) Tap

(2) Tap

to display the 2D keyboard and then tap

)

Initially, the cursor appears here.

(3) In the input box below Σ, input “k=1”.

Vke

(4) Tap with the stylus to move the cursor to the other

input locations and input the required information.

In the input box above Σ, tap L.

(5) Input the part of the expression that comes to the right of Σ.

kIJ

(6) After everything is the way you want, press E.

Example 3: To input

(1) Tap

(2) Tap

to display the 2D keyboard and then tap

)

∫

(1–

)

ex dx

(3) Input the part of the expression that comes to the right of

(b-

ce)

• Or you can use 2D math symbols to enter the expression.

Initially, the cursor appears in the input box to the right of

∫

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Input

(4) Tap with the stylus to move the cursor to the other input locations to enter the

limits of integration. In the input box above ∫, tap b. In the input box below

, tap a.

∫

(5) After everything is the way you want, press E.

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1-7-1

Variables and Folders

1-7 Variables and Folders

Your ClassPad lets you register text strings as variables. You can then use a variable to store a value, expression, string, list, matrix, etc. A variable can be recalled by a calculation to access its contents. Variables are stored in folders. In addition to the default folders that are provided automatically, you can also create your own user folders. You can create user folders as required to group variables by type or any other criteria.

Folder Types

Your ClassPad stores variables in one of four types of folders described below.

Folder Type

“system” Folder

“library” Folder

“main” Folder

User Folder

Description

This is one of the ClassPad’s reserved folders, which is provided by default. It is used for storage of system variables, which are predefined variables used by ClassPad applications and other system operations. Some examples of system variables are “list1” through “list6”, View Window parameters “xmin” and “xmax”, etc. A system variable can be accessed by any application simply by specifying the applicable variable name.

Also a ClassPad reserved folder, the “library” folder can be used for storing user-created variables. Variables stored in the “library” folder can be accessed without specifying a path, regardless of the current folder setting (see next page).

The “main” folder is also a ClassPad reserved folder, and acts as the default current folder. While the “main” folder is the current folder, all variables created by ClassPad application operations are stored here when you do not specify a path for variable storage.

This is a folder created and named by you. You can make a user folder the current folder, move variables to a user folder, etc. You can also delete and rename a user folder as required. You can have up to 87 user folders in ClassPad memory at one time.

Tip

• You cannot put a folder inside of another folder.

• You can view the contents of a folder using the Variable Manager (page 1-8-1). Note, however, that you cannot open the “system” folder for viewing.

• The “system” folder contents are listed within the selected for “Form”.

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(

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Current Folder

The current folder is the folder where the variables created by applications (excluding eActivity) are stored and from which such variables can be accessed. The initial default current folder is the “main” folder. You can also select a user folder you created as the current folder. For more information about how to do this, see “Specifying the Current Folder” on page 1-8-3.

Variable Types

ClassPad variables can be broadly grouped into three types: general variables, system variables, and local variables.

Variable Type

General Variables

System Variables

Local Variables

Description

A general variable is one you create using any name you want. Unless you specify otherwise when you are creating it, a general variable is stored in the current folder. You can use the same name for multiple variables, as long as each of them is stored in a different folder. General variables can be deleted, renamed, etc.

System variables are pre-defined reserved variables used by ClassPad applications and other system operations. They are stored in the “system” folder. System variables can be accessed without specifying the folder name, and can even be accessed from another folder. Since system variable names are reserved words, they cannot be renamed. Whether you are allowed to delete or change the contents of a system variable depends on each variable.

• For the names of and detailed information about system variables, see the “System Variable Table” on page α-2-1.

A local variable is a variable that is temporarily created by a defining function, program, or other operation for a particular purpose. A local variable is deleted automatically when execution of the program or user-defined function that created it is complete. You can create a local variable by including the “Local” command in a program. Any variable specified as the argument of a program or a user-defined function is automatically treated as a local variable.

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Variable Data Types

ClassPad variables support a number of data types. The type of data assigned to a variable is indicated by a data type name. Data type names are shown on the Variable Manager variable list, and on the Select Data dialog box that appears when you are specifying a variable in any ClassPad application. The following table lists all of the variable data type names and explains the meaning of each.

Data Type Name

EXPR STR LIST MAT PRGM* EXE*

TEXT* FUNC* PICT*

GMEM*

GEO*

MEM*

Data Type

Real number, complex number or expression data String data

List data created using the Statistics application, Main application, etc. Matrix data created using the Main application, etc. General program

Edit prohibited program Text data

User-defined function Image data

• ClassPad image data includes graph image data saved using the Store function, image data captured using the Presentation application, and picture data transferred from the computer.

Graph memory data saved using the Graph & Table application

• For more information, see “Saving Graph Editor Data to Graph

Memory” on page 3-3-14.

Geometry application data

General-purpose data

OTHR

Data other than that described above

* Protected variable types

Some data types are protected. A variable whose data type is protected cannot be overwritten with another variable, which protects variable contents from being inadvertently altered. Data types whose names are marked with an asterisk in the above table are protected.

Tip

• Note that whether or not a data type is protected is determined by the system. You cannot change the protection status of a data type.

• Even when a variable is a protected data type, you can rename, delete, or move it. To disable these operations, you need to lock the variable. For more information, see “Locking a Variable or Folder” on page 1-7-10.

• The elements of the LIST data type can contain EXPR or STR type data only. The elements of the MAT data type can contain EXPR type data only.

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Creating a Folder

You can have up to 87 user folders in memory at the same time. This section explains how to create a user folder and explains the rules that cover folder names. You can create a folder using either the Variable Manager or the “NewFolder” command.

Creating a folder using the Variable Manager

On the Variable Manager window, tap [Edit] and then [Create Folder]. For more information, see “1-8 Using the Variable Manager”.

Creating a folder using the “NewFolder” command

In the Main application or in a program, execute the “NewFolder” command.

Example: To create a new folder named “Test”

ClassPad Operation

(1) Tap m to display the application menu, and then tap

application.

(2) Display the catalog (cat) keyboard, and then input the “NewFolder” command.

a. In the [Form] menu, select [Cmd].

b. Tap u and the [N] to display the first command that starts with the letter “N”.

c. In the command list, tap “NewFolder” to select it.

d. Tap [INPUT].

“NewFolder” command

to start the Main

(3) Following the “NewFolder” command you just input, enter “Test”.

e s t

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Variables and Folders

(4) Tap w to execute the command.

• The message “done” appears on the display to let you know that command execution is complete.

Tip

• You can use the Variable Manager to view the contents of a folder you create. For more information, see “1-8 Using the Variable Manager”.

• For information about commands you can use to perform folder operations, see “12-6 Program Command Reference”.

Folder Name Rules

The following are the rules that apply to folder names.

• Folder names can be up to 8 bytes long.

• The following characters are allowed in a folder name.

Upper-case and lower-case unaccented characters (character codes 65 to 90, 97 to 122) Upper-case and lower-case accented characters (character codes 257 to 416, 513 to 672) Subscript characters (character codes 480 to 491, 496 to 512, 737 to 746, 752 to 766) Numbers (character codes 48 to 57) Underscore (character code 95)

• Folder names are case-sensitive.

For example, each of the following is treated as a different folder name: abc, Abc, aBc,

ABC.

• A reserved word (system variable names, built-in function names, command names, etc.)

cannot be used as a folder name.

• A number, subscript characters or the underscore (_) cannot be used as the first character

of a folder name.

Creating and Using Variables

This section explains how to create a new variable (general variable), and provides a simple sample calculation that illustrates how to use a variable.

Variable Name Rules

The rules for naming variables are identical to those that cover folder names. For more information, see “Folder Name Rules” above.

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Single-character Variable Precautions

Your ClassPad supports the use of single-character variables, which are variables whose names consist of a single character like “

keypad keys, math (mth) soft keyboard X, Y, Z, [ keys, V key set keys, etc.) are dedicated single-character variable name input keys. You cannot use such a key to input a variable name that has more than one character. For example, pressing the keypad keys x and y in succession is interpreted by the ClassPad as the multiplication expression “x × y”, and not as the characters “xy”. In order to input a variable name made up of two or more characters, use the alphabet (abc) keyboard. For more information, see “Using Single-character Variables” on page 1-6-12.

Creating a New Variable

The most common way to create a new variable is assigning a value or expression to the applicable variable name. Use the variable assignment key (W) to assign data to a variable.

” or “x”. Some ClassPad keys (x, y, Z

Assign key This key is included on the math (mth) and 2D soft keyboards.

The following is an example of assignment to a variable while “main” is specified as the current folder.

Example: To create a new variable named “eq1” and assign the expression 2 The following assumes that there are no variables named “eq1” or “x” currently in

the “main” folder.

ClassPad Operation

(1) On the application menu, tap

(2) Press

9cX

• This creates a variable named “eq1” in the current folder (the “main” folder in this

example), and assigns the expression 2

to display the soft keyboard, and then perform the following key operation.

0eq

to start the Main application.

+ 1 to it.

+ 1 to it

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Tip

• As shown in the above example, assigning something to a variable with a name that does not yet exist in the current folder causes a new variable with that name to be created. If a variable with the specified name already exists in the current folder, the contents of the existing variable are replaced with the newly assigned data, unless the existing variable is protected. For more information about protected variables, see “Protected variable types” on page 1-7-3.

• To store the newly created variable in a folder other than the current folder, specify the variable name as follows: <folder name>\<variable name>.

• You can use the Variable Manager to view the contents of a variable you create. For more information, see “1-8 Using the Variable Manager”.

Variable Usage Example

The following example uses the variable we created in the example under “Creating a New Variable” on page 1-7-6.

Example: To copy the variable “eq1” and then paste it into the following two equations:

eq1 +

ClassPad Operation

– 2 and eq1

(1) First, check the current contents of variable “eq1”.

0eq

(2) Copy the variable by dragging the stylus across “eq1” and then tapping G, or tap [Edit]

[Copy].

• Copy and paste comes in handy when you need to input the same variable into multiple expressions. You can also drag “eq1” to another line.

(3) Perform the key operation below to input and execute the first expression:

eq1 +

– 2.

(or [Edit] [Paste])

9+X

-c

(4) Perform the key operation below to replace the current contents of “eq1” with the list

{1, 2, 3}.

b,c,d

{

}

(5) Perform the key operation below to input and execute the second expression:

eq1 × 2

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“library” Folder Variables

Variables in the “library” folder can be accessed without specifying a path name, regardless of the current folder.

Example: To create and access two variables, one located in the “library” folder and one

located in another folder

ClassPad Operation

(1) With “main” specified as the current folder (the default), perform the following operation

to create a variable named “eq1” and assign the indicated list data to it.

{1, 2, 3} S eq1

(2) Keeping “main” specified as the current folder, perform the following operation to create

a variable named “eq2” in the “library” folder, and assign the indicated list data to it.

{4, 5, 6} S library \ eq2

Specifies the “library” folder.

(3) Check the contents of the two variables.

eq1

eq2

Since variable “eq2” is stored in the

“library” folder, you do not need to

indicate a path to access it.

(4) Change the current folder specification to “Test”.

• Use the Basic Format dialog box (page 1-9-4) or the Variable Manager (page 1-8-1) to change the current folder specification.

(5) Perform the following operations to view the contents of variables “eq1” and “eq2”.

eq1

Since this key operation does not access the

“main” folder, the variable name (“eq1”) is

displayed without showing the variable contents.

main\eq1

Specifying the path to the “main” folder

where “eq1” is located displays the

contents of the variable.

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Variables and Folders

eq2

Since variable “eq2” is stored in the

“library” folder, you do not need to

indicate a path to access it.

Tip

• Specifying a variable name that exists in both the current folder and the “library” folder causes the variable in the current folder to be accessed. For details about the variable access priority sequence and how to access variables in particular folders, see “Rules Governing Variable Access” on page 1-7-11.

• You can use the Variable Manager (page 1-8-1) to move existing variables from the “main” folder or a user folder to the “library” folder, or from the “library” folder to other folders.

Using Stat Editor to Create a LIST Variable

Stat Editor makes creation of LIST variables (variables that contain list data) quick and easy. This capability really comes in handy when you need to perform a calculation (statistical calculations, etc.) that involves a large number of LIST variables. Stat Editor appears as the initial screen when you start up the Statistics application. You can also access the Stat Editor window from the Main, Graph & Table, and eActivity applications.

Input a variable name like “list_t” into the title cell at the top of the list on the Stat Editor window (1), and then input values into the list (2). This creates a LIST variable with the name list_t that is assigned the contents of the list of data (2). The above example creates a LIST variable named “list_t” and assigns it the list data “{12, 24, 36}”.

Tip

• For details about using Stat Editor, see “7-2 Using Stat Editor”.

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Assigning Values and Other Data to a System Variable

As its name suggests, a system variable is a variable that is created and used by the system (page 1-7-5). Some system variables allow you to assign values and other data to them, while some system variables do not. For more information about which variables allow you to control their contents, see the “System Variable Table” on page α-2-1.

Locking a Variable or Folder

Locking a variable or folder protects against inadvertently deleting it or changing its contents. You can unlock a locked variable or folder to re-enable deletion and data assignment.

• Locking a variable disables the following operations on it: delete, overwrite, rename, and

move (to another folder).

• Locking a folder makes it impossible to delete or rename the folder.

Tip

• In terms of ClassPad variables, “lock” is completely different from “protect”. For more information about “protect”, see “Variable Data Types” on page 1-7-3.

You can lock and unlock a variable or folder using either the Variable Manager or commands.

To lock or unlock a variable or folder using the Variable Manager

In the Variable Manager, select the folder or variable you want to lock or unlock and then tap [Edit] - [Lock] or [Edit] - [Unlock]. For more information, see “1-8 Using the Variable Manager”.

To lock or unlock a variable or folder using commands

In the Main application or in a program, execute one of the commands described below.

To do this:

Lock a variable Unlock a variable Lock a folder Unlock a folder

For information about commands, see “12-6 Program Command Reference”.

Use this command syntax:

Lock <variable name> Unlock <variable name> LockFolder <folder name> UnlockFolder <folder name>

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Variables and Folders

Rules Governing Variable Access

Normally, you access a variable by specifying its variable name. The rules in this section apply when you need to reference a variable that is not located in the current folder or to access a variable that has the same name as one or more variables located in other folders.

Variable Search Priority Sequence

Specifying a variable name to access a variable, searches variables in the following sequence.

(1) Local Variables

(2) Current Folder Variables

(3) “library” Folder Variables

• Multiple variables with the same name can exist simultaneously as a local variable, as

a variable in the current folder, and as a variable in the “library” folder. In this case, the ClassPad searches folders according to the sequence shown above and accesses the first instance of the variable that it finds. If you want to access such a variable when it occurs lower in the above priority sequence, you need to specify the folder name along with the variable name as shown in “Specifying a Variable in a Particular Folder” below.

• If a variable you specify cannot be found, it is treated as an “undefined variable”.

• Note that the “system” folder is not included in the above variable search. When accessing

a variable in the system folder, you need to specify the variable name only, without specifying the folder name.

Tip

• Local variables exist only as long as the program or user-defined function for which it was created in being executed.

• When a variable search is required during a subroutine called by a program or user-defined function, the local variable search range includes only the local variables of the subroutine currently being executed.

• For information about programs and user-defined functions, see Chapter 12.

• Only local variables and current folder variables are searched in the case of an operation that stores variable data or a command that performs an operation on a variable (like “DelVar”). Normally, “library” folder variables are not searched. If you want to include “library” folders in the search, you need to specify the “library” folder as the variable location as explained below.

Specifying a Variable in a Particular Folder

You can access a variable located inside the “main” folder, “library” folder, or a particular user folder by specifying the folder name along with the variable name. Use the following syntax when specifying a folder name:

Example: To specify variable “abc” located in the “main” folder

main\abc

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Using the Variable Manager

1-8 Using the Variable Manager

The Variable Manager is a tool for managing user variables, programs, user functions, and other types of data. Though this section uses only the term “variables”, the explanations provided here also refer to the other types of data that can be managed by the Variable Manager.

Variable Manager Overview

This section explains how to start up and exit the Variable Manager. It also provides information about the configuration of the Variable Manager.

With the Variable Manager you can:

• Create, delete, rename, lock, and unlock folders for storing variables, and configure current

folder settings.

• Delete, copy, rename, move, lock, unlock, search for variables, and view the contents of

variables.

Starting Up the Variable Manager

To start up the Variable Manager, tap O, and then tap [Variable Manager].

• Starting up the Variable Manager initially displays the folder list, which is described on the next page.

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Variable Manager Views

The Variable Manager uses two views, a folder list and a variable list.

• The folder list always appears first whenever you start up the Variable Manager.

Current folder

Folder names

Number of variables contained in the folder

Folder List

• Tapping a folder name on the folder list selects it. Tapping the folder name again displays the folder’s contents; a variable list.

Folder name

Variable names Variable data types (page 1-7-3)

Number of variables contained in the folder

and sizes (bytes)

Variable List

• To close the variable list and return to the folder list, tap [Close].

Exiting the Variable Manager

To exit the Variable Manager, tap the [Close] button.

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Using the Variable Manager

Variable Manager Folder Operations

This section describes the various folder operations you can perform using the Variable Manager.

Specifying the Current Folder

The “current folder” is the folder where the variables created by applications (excluding eActivity) are stored and from which such variables can be accessed. The initial default current folder is the “main” folder. You can also select a folder you created yourself as the current folder.

ClassPad Operation

(1) Start up the Variable Manager and display the folder list.

Current folder

(2) Tap the [Current] down arrow button. On the list that appears, select the folder that

you want to specify as the current folder.

(3) Tap [Close] to close the folder list.

Creating a New Folder

You can use the following procedure to create up to 87 folders, as you need them.

ClassPad Operation

(1) Start up the Variable Manager, which causes the folder list to appear.

(2) On the folder list, tap [Edit] and then [Create Folder].

• This displays a dialog box for inputting a folder name.

(3) Enter the folder name, and then tap [OK].

• This creates the new folder and returns to the folder list.

Normally, a folder name can contain up to eight bytes. If your folder name includes 2-byte

•

characters, you may not be able to input eight characters for the folder name. For details about folder names, see page 1-7-5.

Tip

• An error message appears and your folder is not created if there is already a folder with the same

name you input. Tap [OK] to close the error message dialog box, and then specify a different name for the folder you are creating.

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Using the Variable Manager

Selecting and Deselecting Folders

The folder operations you perform are performed on the currently selected folders. The folders that are currently selected on the folder list are those whose check boxes are selected (checked). You can use the following operations to select and deselect folders as required.

To do this: Do this:

Select a single folder Select the check box next to the folder name.

Deselect a single folder Clear the check box next to the folder name.

Select all the folders in the list Tap [All] and then [Select All].

Deselect all the folders in the list Tap [All] and then [Deselect All].

Tip

• If no check box is currently selected on the folder list, any folder operation that is performed affects the folder whose name is currently highlighted on the list. If any folder check box is currently selected, only that folder is affected by a folder operation, and the folder whose name is highlighted on the list is not affected.

• Selecting the check box of a folder causes the check boxes of all of the variables inside of it also to become selected.

• When renaming a folder, only the folder whose name is highlighted on the folder list is renamed. Other folders whose check boxes are selected are not affected.

Deleting a Folder

Warning!

Before deleting a folder, make sure you no longer need any of the variables contained inside it. It is probably a good idea to first delete the variables you don’t need and move the variables you do need to another folder, and then delete the empty folder.

ClassPad Operation

(1) Start up the Variable Manager and display the folder list.

(2) Open the folder you want to delete and check its contents.

• Make sure you no longer need any of the variables in the folder. If any of the variables are locked, unlock them.

• After checking the contents of the folder, close it to return to the folder list.

(3) Select the check box next to the folder you want to delete.

• You can select and delete multiple folders, if you want.

(4) On the folder list, tap [Edit] and then [Delete].

(5) In response to the confirmation dialog box that appears, tap [OK] to delete the folder

or [Cancel] to exit the dialog box without deleting the folder.

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Using the Variable Manager

Tip

• You cannot delete the “library” folder or the “main” folder.

• If no check box is currently selected on the folder list, the folder whose name is currently highlighted on the list is deleted when you tap [Edit] and then [Delete].

• An error message appears and the folder is not deleted if any one of the following conditions exists.

• The folder is locked.

• Any variable inside the folder is locked.

• There are still variables inside the folder.

Renaming a Folder

You can use the following procedure to change the name of an existing folder.

ClassPad Operation

(1) Start up the Variable Manager and display the folder list.

(2) Tap the name of the folder you want to rename so it is highlighted.

(3) Tap [Edit] and then [Rename].

• This displays a dialog box for inputting a new folder name.

(4) Input the new folder name.

(5) When the name is the way you want, tap [OK] to save it, or tap [Cancel] to cancel the

rename procedure.

Tip

• When renaming a folder, only the folder whose name is highlighted on the folder list is renamed. Other folders whose check boxes are selected are not affected.

• A folder that is locked cannot be renamed.

Locking and Unlocking a Folder

A folder cannot be deleted or renamed while it is locked. Lock any folder that you want to protect against accidental deletion.

To lock a folder

(1) Start up the Variable Manager and display the folder list.

(2) Select the check box next to the folder you want to lock.

• If you want to lock multiple folders, select all of their check boxes.

(3) Tap [Edit] and then [Lock].

• This locks the currently selected folder, and adds a b icon to the left of its name to indicate that it is locked.

To unlock a folder

(1) Start up the Variable Manager and display the folder list.

(2) Select the check box next to the folder you want to unlock.

(3) Tap [Edit] and then [Unlock].

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Using the Variable Manager

Inputting a Folder Name into an Application

Perform the procedure below when you want to input the name of a folder displayed on the Variable Manager window into the application from which you started up the Variable Manager.

ClassPad Operation

(1) In the Main application, Graph & Table application,

or some other application, move the cursor to the location where you want to input the folder name.

(2) Start up the Variable Manager to display the list of

folders.

(3) Tap the folder whose name you want to input, so the name is highlighted.

(4) Tap [INPUT].

• This exits the Variable Manager and inputs the name of the folder you selected in step (3) into the application at the current cursor position.

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Using the Variable Manager

Variable Operations

This section explains the various operations you can perform on the Variable Manager variables.

Opening a Folder

Perform the steps below to open a folder and display the variables contained inside it.

ClassPad Operation

(1) Start up the Variable Manager and display the folder list.

(2) Tap the name of the folder you want to open so it is highlighted, and then tap it again.

• This opens the folder and displays a variable list showing its contents.

(3) To return to the folder list, tap [Close].

Opening the “library” Folder

Note that the procedure you need to use to open the “library” folder is different from the procedure for opening other folders.

ClassPad Operation

(1) Start up the Variable Manager and display the folder list.

(2) Tap [View] and then [“library” Folder].

• This opens the “library” folder and displays a variable list showing its contents.

(3) To return to the folder list, tap [Close].

Tip

• You can also open the “library” folder (by tapping [View] and then [“library” Folder]) while the variable list is on the display.

Displaying a List of a Particular Type of Variable

You can use the variable list to produce a list of a particular type of variable only.

ClassPad Operation

(1) In the Variable Manager, open any folder to display a variable list of its contents.

(2) Tap [View] and then [Variable Type].

• This displays the Variable Type dialog box for specifying the variable data type.

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Using the Variable Manager

(3) On the dialog box, tap the down arrow button and then select the data type from the

list that appears.

• To display variables for all data types, select [All].

• For details about data type names and variables, see “Variable Data Types” on page 1-7-3.

(4) After selecting the data type you want, tap [OK] to apply it or [Cancel] to exit the

selection dialog box without changing the current setting.

Tip

• Returning to the folder list or exiting the Variable Manager causes the data type to change to the initial default setting, which is [All].

• Performing this operation clears the check boxes for all of the variables inside the applicable folder.

Selecting a Variable

Before you can copy, delete, or perform any other operation on a variable, you must first select it.

To select or deselect a variable

(1) In the Variable Manager, open any folder to display a variable list of its contents.

(2) Perform one of the operations described below to select or deselect a variable.

To do this: Do this:

Select a single variable Select the check box next to the variable name.

Deselect a single variable Clear the check box next to the variable name.

Select all the variables in the list Tap [All] and then [Select All].

Deselect all the variables in the list Tap [All] and then [Deselect All].

Tip

• If no check box is currently selected on the variable list, any variable operation that is performed affects the variable whose name is currently highlighted on the list. If any variable check box is currently selected, only that variable is affected by a variable operation, and the variable whose name is highlighted on the list is not affected.

• The selected/deselected status of a variable is retained, even when you return from the variable list to the folder list. Exiting the Variable Manager or changing the data type selection, however, causes all variables to be deselected.

• When renaming a variable, only the variable whose name is highlighted on the variable list is renamed. If other variables are selected (checked), they will not be affected.

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Using the Variable Manager

Deleting a Variable

Perform the following steps when you want to delete a variable.

ClassPad Operation

(1) Open the folder that contains the variable you want to delete and display the variable

list.

(2) Select the check box next to the variable you want to delete.

• To delete multiple variables, select all of their check boxes.

(3) Tap [Edit] and then [Delete].

(4) In response to the confirmation dialog box that appears, tap [OK] to delete the

selected variable or [Cancel] to cancel the delete operation.

Tip

• If no check box is selected on the variable list, the variable whose name is currently highlighted on the list is deleted when you tap [Edit] and then [Delete].

• If the currently selected variable is locked, an error message appears and the variable is not deleted.

Copying and Moving a Variable

You can use the procedure below to copy or move a variable to another folder.

ClassPad Operation

(1) Open the folder that contains the variable you want to copy or move, and display the

variable list.

(2) Select the check box next to the variable you want to copy or move.

• To copy or move multiple variables, select all of their check boxes.

(3) Perform the copy operation or the move operation.

To do this: Perform this operation:

Copy the variable Tap [Edit] and then [Copy].

Move the variable Tap [Edit] and then [Move].

• This causes a dialog box for selecting the destination folder to appear.

(4) On the dialog box, tap the down arrow button and then select the destination folder

from the list that appears.

(5) When the destination folder you want is selected, tap [OK] to perform the copy or

move operation, or tap [Cancel] to cancel the procedure.

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Using the Variable Manager

Tip

• If no check box is currently selected on the variable list, the variable whose name is currently highlighted on the list is copied or moved.

• If a variable with the same name already exists in the destination folder, the variable in the destination folder is replaced with the one that you are copying or moving.

• An error message appears and the variable is not copied or moved if a variable with the same name already exists in the destination folder and that variable is locked or protected.

• A variable that is locked cannot be moved.

Renaming a Variable

Perform the following steps when you want to rename a variable.

ClassPad Operation

(1) Open the folder that contains the variable you want to rename and display the variable

list.

(2) Tap the name of the variable you want to rename so it is highlighted.

(3) Tap [Edit] and then [Rename].

• This displays a dialog box for inputting a new variable name.

(4) Input the new variable name.

(5) When the name is the way you want, tap [OK] to save it, or tap [Cancel] to cancel the

rename procedure.

Tip

• When renaming a variable, only the variable whose name is highlighted on the variable list is renamed. Other variables whose check boxes are selected are not affected.

• A variable that is locked cannot be renamed.

Locking and Unlocking a Variable

A locked variable cannot be deleted, moved, or renamed. A locked variable also cannot be overwritten by a variable with the same name being moved or copied into its folder. Lock any variable that you want to protect against accidental deletion.

To lock a variable

(1) Open the folder that contains the variable you want to lock and display the variable

list.

(2) Select the check box next to the variable you want to lock.

• If you want to lock multiple variables, select all of their check boxes.

(3) Tap [Edit] and then [Lock].

• This locks the currently selected variable, and adds a b icon to the left of its name to indicate that it is locked.

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Using the Variable Manager

To unlock a variable

(1) Open the folder that contains the variable you want to unlock and display the variable

list.

(2) Select the check box next to the variable you want to unlock.

(3) Tap [Edit] and then [Unlock].

Searching for a Variable

You can use the following procedure to search the “main” folder or a user defined folder for a particular variable name. Note that you cannot search the “library” folder.

ClassPad Operation

(1) Start up the Variable Manager and display the folder list.

(2) On the folder list, tap [Search] and then [Search].

• This displays a dialog box for inputting a search string.

(3) Enter the variable name you want to find and then tap

[OK].

• An exclamation point ( folders containing a variable name that matches the name in your search.

) appears in front of all

Tip

• The message “Not Found” appears on the display if a match cannot be found.

• The exclamation point ( ) remains on the folder list until you exit the Variable Manager or perform another search operation. Also note that the exclamation point ( folder name, even if you delete or rename the found variable.

) remains in front of the

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Using the Variable Manager

Viewing the Contents of a Variable

You can use the Variable Manager to view the contents of a particular variable.

ClassPad Operation

(1) Open the folder that contains the variable whose contents you want to view and

display on the variable list.

(2) Tap the name of the variable whose contents you want to view so it is highlighted, and

then tap it again.

• This displays a dialog box that shows the contents of the variable.

Example of EXPR variable contents

(3) To close the dialog box, tap [OK].

Tip

• You can use this procedure to display the contents of the following variable types only: EXPR, STR, LIST, MAT, FUNC, PRGM, TEXT, PICT.

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Using the Variable Manager

Inputting a Variable Name into an Application

Perform the procedure below when you want to input the name of a variable from the Variable Manager window into the application from which you started up the Variable Manager.

ClassPad Operation

(1) In the Main application, Graph & Table application, or

some other application, move the cursor to the location where you want to input the variable name.

(2) Start up the Variable Manager to display the folder list.

(3) Find the name of the folder that contains the variable whose name you want to input,

and tap it twice.

(4) Tap the variable whose name you want to input, so its name is highlighted.

(5) Tap [INPUT].

• This exits the Variable Manager and inputs the name of the variable you selected in step (4) into the application at the current cursor position.

• In this example, the variable is located in a folder (bio) that is not the current folder, so the folder name needs to be specified (bio\ list02). If the variable is located in the current folder, you do not need to specify the folder name (list02).

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Configuring Application Format Settings

1-9 Configuring Application Format Settings

The O menu includes format settings for configuring the number of calculation result display digits and the angle unit, as well as application-specific commands. The following describes each of the settings and commands that are available on the O menu.

To do this:

Specify folder for variables, and to configure number format, angle, and other basic settings for all built-in applications

Configure Graph window and graph drawing settings for Graph & Table, Conics, and other graphing applications

Configure 3D Graph window and graph drawing settings for the 3D Graph application

Configure number format and angle settings for Geometry application

Configure Fourier transform and FFT settings Advanced Format

Configure Financial application settings Financial Format

Configure Presentation application settings Presentation

Configure Communication application settings Communication

Return all [Setup] menu settings to their initial default values (except for the current folder setting specified on Basic Format dialog box)

Select this O menu command:

Basic Format

Graph Format

3D Format

Geometry Format

Default Setup

Tip

• For more details about the structure and content of the O menu, see “Using the O Menu” on page 1-5-4.

ClassPad Operation

(1) Open any application (except the System application).

(2) Tap O.

(3) Tap the menu command you want: Basic Format, Graph Format, 3D Format, Geometry

Format, Advanced Format, Financial Format, Presentation, or Communication.

• To configure Graph Format settings, for example, tap O and then [Graph Format]. This displays the Graph Format dialog box.

• Some setup dialog boxes contain multiple tabbed sheets like the Graph Format dialog box. Tap the tab for the sheet that contains the settings you want to configure.

(4) Use the dialog box to configure the settings you want.

• For details about the settings you can configure on each of the dialog boxes, see “Application Format Settings” on page 1-9-4.

• Some settings require specification of a variable. For more information, see “Specifying a Variable” on the next page.

(5) To close a dialog box and apply its settings, tap [Set]. To close a dialog box without

applying its settings, tap [Cancel] or the button in the upper right corner of the dialog box.

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Configuring Application Format Settings

Specifying a Variable

Certain settings require that you specify variables. If you specify a user-stored variable when configuring the setting of such an item, you must specify the folder where the variable is stored and the variable name.

Example: To use [Table Variable] on the [Special] tab of the Graph Format dialog box for

configuring a user variable

ClassPad Operation

(1) Tap O, or tap

• This displays the Graph Format dialog box.

(2) Tap the [Special] tab.

(3) Tap the [Table Variable] down arrow button.

• This displays a list of variables.

on the icon panel, and then tap [Graph Format].

(4) On the list, tap “Select List Name…”.

• This displays the Select Data dialog box for selecting a variable.

Variable type

Select the folder where the variable is stored.

Specify the variable name.

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Configuring Application Format Settings

(5) Use the Select Data dialog box to specify the folder where the variable is saved, and

then specify the variable name.

• The sample dialog box in step (4) shows selection of the list variable named “ab”, which is located in the folder named “main”.

(6) Tap [OK].

• This closes the Select Data dialog box.

This line shows the <folder name>\<variable name> specified in step (5) (“main\ab” in this case). This box indicates that “main\ab” is selected for Table Variable.

(7) Tap [Set] to save your settings.

Initializing All Application Format Settings

Perform the following procedure when you want to return all application format settings to their initial defaults.

ClassPad Operation

(1) Tap O, or tap

(2) In response to the “Reset Setup Data?” message that appears, tap [OK] to initialize all

settings or [Cancel] to cancel the reset operation.

• If you tap [OK], the settings are initialized and then a dialog box appears on the display.

• For details about the initial default setting for each item, see “Application Format Settings” on page 1-9-4.

Tip

• Initializing the application format settings does not affect the current folder setting on the Basic Format dialog box. For details about the current folder, see “Specifying the Current Folder” on page 1-8-3.

on the icon panel, and then tap [Default Setup].

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Configuring Application Format Settings

Application Format Settings

This section provides details about all of the settings you can configure using the application format settings.

The following two points apply to all of the dialog boxes.

• Some settings involve turning options on or off. Selecting a check box next to an option (so

it has a check mark) turns it on, while clearing the check box turns it off.

• Other settings consist of a text box with a down arrow button on the right. Tap the down

arrow button to display a list of available settings, and then tap the setting you want.

Important!

• Settings that are marked with an asterisk (*) in the following tables are the initial defaults.

Basic Format Dialog Box

Use the Basic Format dialog box to configure basic settings for calculations, cells, and other parameters.

Current Folder

To specify this folder as the current folder: Select this setting:

main main*

A user-defined folder Any other setting

• [Current Folder] settings can also be configured using the Variable Manager. For more

information, see “Specifying the Current Folder” on page 1-8-3.

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Configuring Application Format Settings

Number Format

To specify this type of numeric value display format: Select this setting:

Auto exponential display for values less than 10 or greater (when you are in the Decimal mode)

–2

and from 10

–9

and from 10

Normal 1*

Normal 2

Fixed number of decimal places Fix 0 – 9

Fixed number of significant digits Sci 0 – 9

Angle

To specify this angle unit: Select this setting:

Radians Radian*

Degrees Degree

Grad Grad

Advanced

To do this: Do this:

Perform complex number calculations (Complex mode)

Select the [Complex Format] check box.

Perform real number calculations (Real mode) Clear the [Complex Format] check box.*

Select the [Decimal Calculation]

) for

check box.

Clear the [Decimal Calculation] check box.*

Select the [Assistant] check box.

Clear the [Assistant] check box.*

Select the [Descending Order] check box.*

Clear the [Descending Order] check box.

Display results as a decimal (Decimal mode)

Leave calculation results as expressions (Standard mode)

Turn off auto simplification of expressions (Assistant mode)

Turn on auto simplification of expressions (Algebra mode)

Specify descending order (e.g.

+ x + 1) for

the calculation result expression

Specify ascending order (e.g. 1 + x +

the calculation result expression

Specify that variables in Complex Mode calculation should be treated as real numbers

Select the [Variable is Real] check box.

• With this setting, re(a+bi)=a and im(a+bi)=b.

Specify that variables in Complex Mode calculation should be treated as complex

Clear the [Variable is Real] check box.*

numbers

Divide total population on its center point between upper and lower groups, with the median of the lower group Q1 and the median

Select the [Q1, Q3 on Data] check box.

of the upper group Q3

Make the value of element whose cumulative frequency ratio is greater than 1/4 and nearest to 1/4 Q1 and the value of element whose

Clear the [Q1, Q3 on Data] check box.* cumulative frequency ratio is greater than 3/4 and nearest to 3/4 Q3

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Configuring Application Format Settings

*1 Executing 1 ÷ 2 in the Decimal mode produces a result of 0.5, while the Standard mode

produces a result of

*2 Executing

+ 2x + 3x + 6 E in the Assistant mode produces a result of

while the Algebra mode produces a result of

+ 5

• x + 6.

+ 2

• x + 3

• x + 6,

Important!

The Assistant mode is available in the Main application and eActivity application only.

Graph Format Dialog Box

Use the Graph Format dialog box to configure settings for the Graph window and for drawing graphs.

Basic Tab

Axes

To do this: Select this setting:

Turn on display of Graph window axes On*

Turn on display of Graph window axes along with maximum and minimum value of each axis

Turn off display of Graph window axes Off

Other settings

To do this: Do this:

Turn on display of Graph window grid Select the [Grid Points] check box.

Turn off display of Graph window grid Clear the [Grid Points] check box.*

Turn on display of Graph window axis labels Select the [Labels] check box.

Turn off display of Graph window axis labels Clear the [Labels] check box.*

Turn on display of graph controller arrows during graphing

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Select the [G-Controller] check box.

Number

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Configuring Application Format Settings

To do this: Do this:

Turn off display of graph controller arrows during graphing

Draw graphs with plotted points Select the [Draw Plot] check box.

Draw graphs with solid lines Clear the [Draw Plot] check box.*

Turn on display of function name and function Select the [Graph Function] check box.*

Turn off display of function name and function Clear the [Graph Function] check box.

Turn on display of Graph window pointer coordinates

Turn off display of Graph window pointer coordinates

Turn on display of leading cursor during graphing Select the [Leading Cursor] check box.

Turn off display of leading cursor during graphing Clear the [Leading Cursor] check box.*

Draw multiple graphs simultaneously Select the [Simul Graph] check box.

Draw multiple graphs one-by-one Clear the [Simul Graph] check box.*

Turn on display of coordinates of Graph window pointer and its derivative on number table display

Turn off display of coordinates of Graph window pointer and its derivative on number table display

Clear the [G-Controller] check box.*

Select the [Coordinates] check box.*

Clear the [Coordinates] check box.

Select the [Derivative/Slope] check box.

Clear the [Derivative/Slope] check box.*

Special Tab

Background

To do this: Select this setting:

Turn off Graph window background display Off*

Select an image to be used as Graph window background <pict name>

Cell Width Pattern

To specify this row width for stat editor and data table displays:

2 cells 2 Cells 3 cells 3 Cells* 4 cells 4 Cells

Table Variable

To specify this source for table data: Select this setting:

Table input Table input*

List data list1 through list6

Select list data to be used as source for table data <list name>

Select this setting:

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Configuring Application Format Settings

Summary Table

To specify this source for summary table data: Select this setting:

View Window View Window*

List data list1 through list6

Select list data to be used as source for summary table data <list name>

Summary Table f ’’(x)

To do this: Select this setting:

Turn on display of second derivative for summary tables On*

Turn off display of second derivative for summary tables Off

Stat Window Auto

To do this: Do this:

Configure Statistics application View Window settings automatically

Configure Statistics application View Window settings manually

3D Format Dialog Box

Use the 3D Format dialog box to configure settings for the 3D Graph window and for drawing 3D graphs. For full details about the 3D Graph application, see Chapter 5.

Select the [Stat Window Auto] check box.*

Clear the [Stat Window Auto] check box.

Coordinates

To do this:

Display coordinate values using rectangular coordinates

Display coordinate values using polar coordinates

Turn off display of coordinates

Select this setting:

Rectangular*

Polar

Off

20101001

Axes

To do this:

Display axes normally On

Display box type coordinate axes

Turn off display of axes Off*

Select this setting:

Box

1-9-9

Configuring Application Format Settings

Labels

To do this: Select this setting:

Turn on display of Graph window axis labels On

Turn off display of Graph window axis labels Off*

Background

To do this: Select this setting:

Turn off Graph window background display Off*

Select an image to be used as the Graph window background

• The above is the same as the [Background] setting on the Graph Format dialog box.

G-Controller

To do this: Do this:

Turn on display of graph controller arrows during graphing

Turn off display of graph controller arrows during graphing

• The above is the same as the [G-Controller] setting on the Graph Format dialog box.

Geometry Format Dialog Box

Use the Geometry Format dialog box to configure settings for the Geometry application.

Select the [G-Controller] check box.

Clear the [G-Controller] check box.*

Tip

• The information that appears in the preview area at the bottom of the dialog box shows a preview of the Geometry application window, based on the settings configured in upper half of the dialog box.

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Number Format

1-9-10

Configuring Application Format Settings

To specify this type of numeric value display format on the Geometry window:

–2

Auto exponential display for values less than 10

and from

1010 or greater (when you are in the Decimal mode)

Auto exponential display for values less than 10

or greater (when you are in the Decimal mode)

–9

and from

Select this setting:

Normal 1

Normal 2

Fixed number of decimal places Fix 0 – 9

Fixed number of significant digits Sci 0 – 9

• The initial default [Number Format] setting is Fix 2.

Measure Angle

To specify the angle unit for the measurement box: Select this setting:

Radian Radian

Degree Degree*

Grad Grad

Function Angle

To specify the angle unit for graphing: Select this setting:

Radian Radian*

Degree Degree

Grad Grad

Axes

To set the initial Graph window axes condition when opening the Geometry application:

Select this setting:

Turn on display of Graph window axes On

Turn on display of Graph window axes along with maximum and minimum value of each axis

Number

Turn off display of Graph window axes Off*

Integer Grid

To set the initial condition of integer grid when opening the Geometry application:

Do this:

Turn on display of integer grid Select the [Integer Grid] check box.

Turn off display of integer grid Clear the [Integer Grid] check box.*

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Configuring Application Format Settings

Advanced Format Dialog Box

Use the Advanced Format dialog box to configure settings for Fourier transform and FFT settings.

Fourier Transform

To do this: Select this setting:

Specify following formula for Fourier transform:

FFT

To do this: Select this setting:

Specify Pure Math for FFT scaling constant Pure Math

Specify Signal Processing for FFT scaling constant Signal Processing*

Specify Data Analysis for FFT scaling constant Data Analysis

Pure Math*

Modern Physics

Classical Physics

Probability

Signal Processing

Assume positive real

To do this: Do this:

Assume variables for Fourier calculation are positive reals

Allow complex numbers as variables for Fourier calculation

20101001

Select the [Assume positive real] check box.*

Clear the [Assume positive real] check box.

1-9-12

Configuring Application Format Settings

Financial Format Dialog Box

Use the Financial Format dialog box to configure settings for the Financial application.

Basic Tab

Days in Year

To do this: Select this setting:

Specify a 360-day year 360 days

Specify a 365-day year 365 days*

Payment Date

To do this: Select this setting:

Specify beginning of period for the payment date Beginning of period

Specify end of period for the payment date End of period*

Date Format

To do this: Select this setting:

Specify day/month/year as the date format DD/MM/YYYY

Specify month/day/year as the date format MM/DD/YYYY*

Specify year/month/day as the date format YYYY/MM/DD

Automatically copy common fields to new calculation

To do this: Do this:

When changing to another calculation type, automatically copy the contents of all fields in the current calculation whose names match the names of fields in the new calculation

When changing to another calculation type, clear all fields

20110401

Select the [Automatically copy common fields to new calculation] check box.

Clear the [Automatically copy common fields to new calculation] check box.*

1-9-13

Configuring Application Format Settings

Special Tab

Odd Period

To do this: Select this setting:

Specify compound interest for odd (partial) months Compound (CI)

Specify simple interest for odd (partial) months Simple (SI)

Specify no separation of full and odd (partial) months Off*

Compounding Frequency

To do this: Select this setting:

Specify once a year compounding Annual*

Specify twice a year compounding Semi-annual

Bond Interval

To do this: Select this setting:

Use a number of payments as term for bond calculations Term*

Use a date as term for bond calculations Date

Profit Amount/Ratio

To do this: Select this setting:

Use amount (PRF) for break-even point calculations Amount (PRF)*

Use profit ratio (r%) for break-even point calculations Ratio (r%)

Break-Even Value

To do this: Select this setting:

Use quantity for break-even point calculations Quantity*

Use sales amount for break-even point calculations Sales

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Configuring Application Format Settings

Presentation Dialog Box

Use the Presentation dialog box to configure settings for the Presentation application. For full details about the Presentation application, see Chapter 11.

To do this: Do this:

Send hard copy data to an external device Select “Outer Device” for [Screen Copy To].*

Save hard copy data internally as Presentation data

Specify the page change speed for Auto Play

Capture the upper half of the window when

is tapped

Capture the entire window when h is tapped

Select “P1:<File name>**” through

“P20:<File name>**” for [Screen Copy To].

Specify a [Play Speed] value from 1 (fastest) to 10 (slowest).

Select the [Half Screen Capturing] check box.

Clear the [Half Screen Capturing] check box.*

Turn on repeat playback of files Select the [Repeat] check box.

Turn off repeat playback of files Clear the [Repeat] check box.*

Turn on page number display during playback and editing

Turn off page number display during playback and editing

Select the [Page Number] check box.*

Clear the [Page Number] check box.

• The initial default [Play Speed] setting is 4.

** <File name> will show the name of the presentation file.

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Configuring Application Format Settings

Communication Dialog Box

Use the Communication dialog box to configure communication settings. For full details about the Communication application, see Chapter 2 in the separate Hardware User’s Guide.

Screen Copy To

To do this with hard copy data generated by tapping h:

Send hard copy data to an external device

Save hard copy data internally as Presentation data

Speed (3Pin)

To specify this data rate for 3-pin communication:

9,600 bps 9600 bps

38,400 bps 38400 bps

115,200 bps 115200 bps*

Select this setting:

Outer Device*

P1 - P20

Select this setting:

Cable Type

To use this type of cable for data communication:

3-pin cable 3pin cable

USB cable USB cable*

Wakeup Enable

To do this:

Turn on the wakeup function (page 2-3-2 in the separate Hardware User’s Guide)

Turn off the wakeup function

Select this setting:

On*

Off

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Chapter

Using the Main Application

The Main application is a general-purpose numerical and mathematical calculation application that you can use to study mathematics and solve mathematical problems. You can use the Main application to perform general operations from basic arithmetic calculations, to

calculations that involve lists, matrices, etc. The Main application also provides you with an [Action] menu and [Interactive] menu from which you can select approximately 120 different commands for working with mathematical expressions.

2-1 Main Application Overview

2-2 Basic Calculations

2-3 Using the Calculation History

2-4 Function Calculations

2-5 List Calculations

2-6 Matrix and Vector Calculations

2-7 Specifying a Number Base

2-8 Using the Action Menu

2-9 Using the Interactive Menu

2-10 Using the Main Application in Combination with

Other Applications

2-11 Using Verify

2-12 Using Probability

2-13 Running a Program in the Main Application

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Main Application Overview

2-1 Main Application Overview

This section provides information about the following.

• Main application windows

• Modes that determine how calculations and their results are displayed

• Menus and their commands

Starting Up the Main Application

Use the following procedure to start up the Main application.

ClassPad Operation

On the application menu, tap

This starts the Main application and displays the work area.

Main Application Window

Starting up the Main application displays a large white work area.

Work area Use this area for inputting operations and commands. ClassPad also uses this area to output calculation results.

Menu bar The [Action] menu and [Interactive] menu are for executing mathematical expressions.

Toolbar

Status bar This area shows the current mode settings for the Main application.

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Main Application Overview

• Basic Main application operations consist of inputting a calculation expression into the work area and pressing E. This performs the calculation and then displays its result on the right side of the work area.

Input expression

Calculation result

• Calculation results are displayed in natural format, with mathematical expressions appearing just as they do in your textbook. You can also input expressions in natural format using the

soft keyboard.

)

• The Main application also has a calculation history feature, which saves up to 30 calculation expressions you input and their calculated results. As long you do not clear the record, this information is available for later recall. This way you can recall a past calculation, make changes to it, and recalculate.

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Casio CLASSPAD330PLUS User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

About This User’s Guide

1-1 General Guide

1-2 Turning Power On and Off

1-3 Using the Icon Panel

1-4 Built-in Applications

1-5 Built-in Application Basic Operations

1-6 Input

1-7 Variables and Folders

1-8 Using the Variable Manager

1-9 Configuring Application Format Settings

2-1 Main Application Overview