Casio fx-9860G AU User Manual

fx-9860G AU

User’s Guide

http://edu.casio.com

Important!

Please keep your manual and all information handy for future reference.

BEFORE USING THE CALCULATOR

FOR THE FIRST TIME...

This calculator does not contain any main batteries when you purchase it. Be sure to perform the following procedure to load batteries, reset the calculator, and adjust the contrast before trying to use the calculator for the first time.

1. Making sure that you do not accidently press the o key, slide the case onto the

calculator and then turn the calculator over. Remove the back cover from the calculator by pulling with your finger at the point marked

2. Load the four batteries that come with the calculator.

• Make sure that the positive (+) and negative (–) ends of the batteries are facing correctly.

3. Remove the insulating sheet at the location marked “BACK UP” by pulling in the direction indicated by the arrow.

4. Replace the back cover, making sure that its tabs enter the holes marked 2 and turn the calculator front side up. The calculator will turn on automatically and the MAIN MENU will appear on the display.

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• If the Main Menu shown to the right is not on the display, open the back cover and press the P button located inside of the battery compartment.

P button

5. Use the cursor keys (f, c, d, e) to select the SYSTEM icon and press w, then press 1(

) to display the contrast adjustment screen.

6. Adjust the contrast.

• The e cursor key makes display contrast darker.

• The d cursor key makes display contrast lighter.

• 1(INIT) returns display contrast to its initial default.

7. To exit display contrast adjustment, press m.

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Quick-Start

TURNING POWER ON AND OFF

USING MODES

BASIC CALCULATIONS

REPLAY FEATURE

FRACTION CALCULATIONS

EXPONENTS

GRAPH FUNCTIONS

DUAL GRAPH

DYNAMIC GRAPH

TABLE FUNCTION

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Quick-Start

Welcome to the world of graphing calculators.

Quick-Start is not a complete tutorial, but it takes you through many of the most common functions, from turning the power on, and on to graphing complex equations. When you’re done, you’ll have mastered the basic operation of this calculator and will be ready to proceed with the rest of this user’s guide to learn the entire spectrum of functions available.

Each step of the examples in Quick-Start is shown graphically to help you follow along quickly and easily. When you need to enter the number 57, for example, we’ve indicated it as follows:

fh.

Press

Whenever necessary, we’ve included samples of what your screen should look like. If you find that your screen doesn’t match the sample, you can restart from the beginning by pressing the “All Clear” button

TURNING POWER ON AND OFF

To turn power on, press o.

To turn power off, press

Calculator power turns off automatically if you do not perform any operation within the Auto Power Off trigger time you specify. You can specify either six minutes or 60 minutes as the trigger time.

OFF

USING MODES

This calculator makes it easy to perform a wide range of calculations by simply selecting the appropriate mode. Before getting into actual calculations and operation examples, let’s take a look at how to navigate around the modes.

To s elect the RUN

1. Press m to display the Main Menu.

•

MAT mode

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Quick-Start

2. Use defc to highlight RUN and then press w.

This is the initial screen of the RUN where you can perform manual calculations, matrix calculations, and run programs.

•

MAT mode,

•

MAT

BASIC CALCULATIONS

With manual calculations, you input formulas from left to right, just as they are written on paper. With formulas that include mixed arithmetic operators and parentheses, the calculator automatically applies true algebraic logic to calculate the result.

Example:

1. Press

2. Press bf*d+gb w.

Parentheses Calculations

Example:

15 × 3 + 61

o to clear the calculator.

15 × (3 + 61)

1. Press bf*(d

+gb)w.

Built-In Functions

This calculator includes a number of built-in scientific functions, including trigonometric and logarithmic functions.

Example:

Important!

Be sure that you specify Deg (degrees) as the angle unit before you try this example.

25 × sin 45˚

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Quick-Start

SET UP

1. Press!m to display the Setup screen.

2. Press cccccc1(Deg)

to specify degrees as the angle unit.

3. Press J to clear the menu.

4. Press o to clear the unit.

5. Press cf* sefw.

REPLAY FEATURE

With the replay feature, simply press d or e to recall the last calculation that

was performed so you can make changes or re-execute it as it is.

Example:

1. Press d to display the last calculation.

2. Press

3. Press D to delete 4.

4. Press f.

5. Press w to execute the calculation again.

To change the calculation in the last example from (25 × sin 45˚) to (25 × sin 55˚)

d to move the cursor (

) to the right side of 4.

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Quick-Start

FRACTION CALCULATIONS

You can use the $ key to input fractions into calculations. The symbol “ { ” is used

to separate the various parts of a fraction.

Example:

/16 + 37/

1. Press o.

2. Press db$bg+

dh$jw.

Indicates

Converting an Improper Fraction to a Mixed Fraction

While an improper fraction is shown on the display, press !Mto convert it to a

mixed fraction.

Press !M again to convert back to an improper fraction.

Converting a Fraction to Its Decimal Equivalent

While a fraction is shown on the display, press M to convert it to its decimal

equivalent.

871

144

Press M again to convert back to a fraction.

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EXPONENTS

Quick-Start

Example:

1. Press o.

2. Press bcfa*c.ag.

3. Press

4. Press f. The ^5 on the display indicates that 5 is an exponent.

5. Press w.

1250 × 2.06

M and the ^ indicator appears on the display.

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Quick-Start

GRAPH FUNCTIONS

The graphing capabilities of this calculator makes it possible to draw complex graphs using either rectangular coordinates (horizontal axis: x ; vertical axis: y) or polar

coordinates (angle: All of the following graphing examples are performed starting from the calculator setup in effect immediately following a reset operation.

; distance from origin: r).

Example

1. Press

2. Use defc to highlight

3. Input the formula.

1: To graph Y = X(X + 1)(X – 2)

GRAPH, and then press w.

v(v+b)

(v-c)w

4. Press 6(DRAW) or w to draw the graph.

Example

1. Press !5(G-SLV).

2: To determine the roots of Y = X(X + 1)(X – 2)

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2. Press 1(ROOT). Press e for other roots.

Quick-Start

Example

1. Press

2. Press 3(∫dx).

3. Use d to move the pointer to the location where

3: Determine the area bounded by the origin and the X = –1 root obtained

for Y = X(X + 1)(X – 2)

!5(G-SLV)6(g).

X = –1, and then press w. Next, use e to

move the pointer to the location where X = 0, and

then press

which becomes shaded on the display.

to input the integration range,

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Quick-Start

DUAL GRAPH

With this function you can split the display between two areas and display two graph windows.

Example:

1. Press !mcc1(G+G)

to specify “G+G” for the Dual Screen setting.

2. Press

To draw the following two graphs and determine the points of intersection

Y1 = X(X + 1)(X – 2) Y2 = X + 1.2

SET UP

J, and then input the two functions.

v(v+b) (v-c)w v+b.cw

3. Press 6(DRAW) or w to draw the graphs.

Box Zoom

Use the Box Zoom function to specify areas of a graph for enlargement.

1. Press !2(ZOOM) 1(BOX).

2. Use

d e f c to move the pointer

to one corner of the area you want to specify and then press

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Quick-Start

3. Use d e f c to move the pointer

again. As you do, a box appears on the display. Move the pointer so the box encloses the area you want to enlarge.

4. Press w, and the enlarged area appears in the

inactive (right side) screen.

DYNAMIC GRAPH

Dynamic Graph lets you see how the shape of a graph is affected as the value assigned to one of the coefficients of its function changes.

Example:

1. Press m.

2. Use d e f c to highlight DYNA, and then press w.

3. Input the formula.

To draw graphs as the value of coefficient A in the following function changes from 1 to 3

Y = AX

vxw

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12356

Quick-Start

4. Press 4(VAR) bw to assign an initial value

of 1 to coefficient A.

5. Press 2(SET) bwdwb

wto specify the range and increment of change

in coefficient A.

6. Press

7. Press 6(DYNA) to start Dynamic Graph drawing.

The graphs are drawn 10 times.

•To interrupt an ongoing Dynamic Graph drawing

operation, press

↓

↓↑

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Quick-Start

TABLE FUNCTION

The Table Function makes it possible to generate a table of solutions as different values are assigned to the variables of a function.

Example:

To create a number table for the following function

Y = X (X+1) (X–2)

1. Press m.

2. Use defc to highlight TABLE, and then press w.

3. Input the formula.

v(v+b)

(v-c)w

4. Press 6(TABL) to generate the number

table.

To learn all about the many powerful features of this calculator, read on and explore!

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Precautions when Using this Product

A progress bar and/or a busy indicator appear on the display whenever the calculator is performing a calculation, writing to memory (including Flash memory), or reading from memory (including Flash memory).

Busy indicator

Progress bar

Never press the P button or remove the batteries from the calculator when the progress bar or busy indicator is on the display. Doing so can cause memory contents to be lost and can cause malfunction of the calculator.

This calculator is equipped with Flash memory for data storage. It is recommended that you always backup your data to Flash memory. For details about the backup procedure, see “12-7 MEMORY Mode” in the User’s Guide.

You can also transfer data to a computer using the Program-Link software (FA-124) that comes bundled with the calculator. The Program-Link software can also be used to backup data to a computer.

Precautions when Connecting to a Computer

A special USB driver must be installed on your computer in order to connect to the calculator. The driver is installed along with the Program-Link software (FA-124) that comes bundled with the calculator. Be sure to install the Program-Link software (FA-124) on your computer before trying to connect the calculator. Attempting to connect the calculator to a computer that does not have the Program-Link software installed can cause malfunction. For information about how to install the Program-Link software, see the User’s Guide on the bundled CD-ROM.

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Handling Precautions

•Your calculator is made up of precision components. Never try to take it apart.

•Avoid dropping your calculator and subjecting it to strong impact.

•Do not store the calculator or leave it in areas exposed to high temperatures or humidity, or

large amounts of dust. When exposed to low temperatures, the calculator may require more time to display results and may even fail to operate. Correct operation will resume once the calculator is brought back to normal temperature.

• The display will go blank and keys will not operate during calculations. When you are operating

the keyboard, be sure to watch the display to make sure that all your key operations are being performed correctly.

•Replace the main batteries once every one year regardless of how much the calculator is used

during that period. Never leave dead batteries in the battery compartment. They can leak and damage the unit.

•Keep batteries out of the reach of small children. If swallowed, consult a physician immediately.

•Avoid using volatile liquids such as thinner or benzine to clean the unit. Wipe it with a soft, dry

cloth, or with a cloth that has been moistened with a solution of water and a neutral detergent and wrung out.

•Always be gentle when wiping dust off the display to avoid scratching it.

• In no event will the manufacturer and its suppliers be liable to you or any other person for any

damages, expenses, lost profits, lost savings or any other damages arising out of loss of data and/or formulas arising out of malfunction, repairs, or battery replacement. It is up to you to prepare physical records of data to protect against such data loss.

•Never dispose of batteries, the liquid crystal panel, or other components by burning them.

•Be sure that the power switch is set to OFF when replacing batteries.

• If the calculator is exposed to a strong electrostatic charge, its memory contents may be

damaged or the keys may stop working. In such a case, perform the Reset operation to clear the memory and restore normal key operation.

• If the calculator stops operating correctly for some reason, use a thin, pointed object to press

the P button on the back of the calculator. Note, however, that this clears all the data in calculator memory.

•Note that strong vibration or impact during program execution can cause execution to stop or

can damage the calculator’s memory contents.

•Using the calculator near a television or radio can cause interference with TV or radio reception.

•Before assuming malfunction of the unit, be sure to carefully reread this user’s guide and ensure

that the problem is not due to insufficient battery power, programming or operational errors.

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Be sure to keep physical records of all important data!

Low battery power or incorrect replacement of the batteries that power the unit can cause the data stored in memory to be corrupted or even lost entirely. Stored data can also be affected by strong electrostatic charge or strong impact. It is up to you to keep back up copies of data to protect against its loss.

In no event shall CASIO Computer Co., Ltd. be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the purchase or use of these materials. Moreover, CASIO Computer Co., Ltd. shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party.

• The contents of this user’s guide are subject to change without notice.

•No part of this user’s guide may be reproduced in any form without the express written consent of the manufacturer.

• The options described in Chapter 12 of this user’s guide may not be available in certain geographic areas. For full details on availability in your area, contact your nearest CASIO dealer or distributor.

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Contents

Getting Acquainted — Read This First!

Chapter 1 Basic Operation

1-1 Keys ................................................................................................. 1-1-1

1-2 Display .............................................................................................. 1-2-1

1-3 Inputting and Editing Calculations .................................................... 1-3-1

1-4 Option (OPTN) Menu ....................................................................... 1-4-1

1-5 Variable Data (VARS) Menu ............................................................. 1-5-1

1-6 Program (PRGM) Menu ................................................................... 1-6-1

1-7 Using the Setup Screen ................................................................... 1-7-1

1-8 Using Screen Capture ...................................................................... 1-8-1

1-9 When you keep having problems… ................................................. 1-9-1

Chapter 2 Manual Calculations

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

2-2 Special Functions ............................................................................. 2-2-1

2-3 Specifying the Angle Unit and Display Format ................................. 2-3-1

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

2-5 Numerical Calculations ..................................................................... 2-5-1

2-6 Complex Number Calculations ......................................................... 2-6-1

2-7 Binary, Octal, Decimal, and Hexadecimal Calculations

with Integers ..................................................................................... 2-7-1

2-8 Matrix Calculations ........................................................................... 2-8-1

Chapter 3 List Function

3-1 Inputting and Editing a List ............................................................... 3-1-1

3-2 Manipulating List Data ...................................................................... 3-2-1

3-3 Arithmetic Calculations Using Lists .................................................. 3-3-1

3-4 Switching Between List Files ............................................................ 3-4-1

Chapter 4 Equation Calculations

4-1 Simultaneous Linear Equations ........................................................ 4-1-1

4-2 Quadratic and Cubic Equations ........................................................ 4-2-1

4-3 Solve Calculations ............................................................................ 4-3-1

4-4 What to Do When an Error Occurs ................................................... 4-4-1

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Contents

Chapter 5 Graphing

5-1 Sample Graphs ................................................................................ 5-1-1

5-2 Controlling What Appears on a Graph Screen ................................. 5-2-1

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

5-4 Storing a Graph in Picture Memory .................................................. 5-4-1

5-5 Drawing Two Graphs on the Same Screen ...................................... 5-5-1

5-6 Manual Graphing .............................................................................. 5-6-1

5-7 Using Tables ..................................................................................... 5-7-1

5-8 Dynamic Graphing ............................................................................ 5-8-1

5-9 Graphing a Recursion Formula ........................................................ 5-9-1

5-10 Changing the Appearance of a Graph ............................................ 5-10-1

5-11 Function Analysis ........................................................................... 5-11-1

Chapter 6 Statistical Graphs and Calculations

6-1 Before Performing Statistical Calculations ....................................... 6-1-1

6-2 Calculating and Graphing Single-Variable Statistical Data ............... 6-2-1

6-3 Calculating and Graphing Paired-Variable Statistical Data .............. 6-3-1

6-4 Performing Statistical Calculations ................................................... 6-4-1

6-5 Tests ................................................................................................. 6-5-1

6-6 Confidence Interval .......................................................................... 6-6-1

6-7 Distribution ....................................................................................... 6-7-1

Chapter 7 Financial Calculation (TVM)

7-1 Before Performing Financial Calculations ........................................ 7-1-1

7-2 Simple Interest ................................................................................. 7-2-1

7-3 Compound Interest ........................................................................... 7-3-1

7-4 Cash Flow (Investment Appraisal).................................................... 7-4-1

7-5 Amortization ..................................................................................... 7-5-1

7-6 Interest Rate Conversion .................................................................. 7-6-1

7-7 Cost, Selling Price, Margin ............................................................... 7-7-1

7-8 Day/Date Calculations ...................................................................... 7-8-1

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Chapter 8 Programming

8-1 Basic Programming Steps ................................................................ 8-1-1

8-2 PRGM Mode Function Keys ............................................................. 8-2-1

8-3 Editing Program Contents ................................................................ 8-3-1

8-4 File Management .............................................................................. 8-4-1

8-5 Command Reference ....................................................................... 8-5-1

8-6 Using Calculator Functions in Programs .......................................... 8-6-1

8-7 PRGM Mode Command List ............................................................ 8-7-1

8-8 Program Library ................................................................................ 8-8-1

Chapter 9 Spreadsheet

9-1 Spreadsheet Overview ..................................................................... 9-1-1

9-2 File Operations and Re-calculation .................................................. 9-2-1

9-3 Basic Spreadsheet Screen Operations ............................................ 9-3-1

9-4 Inputting and Editing Cell Data ......................................................... 9-4-1

• SHT Mode Commands ................................................................ 9-5-1

9-5 S

9-6 Statistical Graphs ............................................................................. 9-6-1

9-7 Using the CALC Function ................................................................. 9-7-1

9-8 Using Memory in the S

Chapter 10 eActivity

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

10-2 Working with eActivity Files .......................................................... 10-2-1

10-3 Inputting and Editing eActivity File Data....................................... 10-3-1

10-4 Using Matrix Editor and List Editor ............................................... 10-4-1

10-5 eActivity File Memory Usage Screen ........................................... 10-5-1

Contents

• SHT Mode ................................................. 9-8-1

Chapter 11 System Settings Menu

11-1 Using the System Settings Menu ................................................. 11-1-1

11-2 System Settings ........................................................................... 11-2-1

11-3 Version List................................................................................... 11-3-1

11-4 Reset ............................................................................................ 11-4-1

Chapter 12 Data Communications

12-1 Connecting Two Units .................................................................. 12-1-1

12-2 Connecting the Unit to a Personal Computer............................... 12-2-1

12-3 Performing a Data Communication Operation ............................. 12-3-1

12-4 Data Communications Precautions .............................................. 12-4-1

12-5 Image Transfer ............................................................................. 12-5-1

12-6 Add-ins ......................................................................................... 12-6-1

12-7 MEMORY Mode ........................................................................... 12-7-1

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Appendix

1 Error Message Table ...........................................................................α-1-1

2Input Ranges .......................................................................................

3 Specifications .......................................................................................

4 Key Index .............................................................................................α-4-1

5P Button (In case of hang up) .............................................................

6 Power Supply .......................................................................................

Contents

-2-1

-3-1

-5-1

-6-1

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Getting Acquainted

— Read This First!

About this User’s Guide

u! x( )

The above indicates you should press ! and then x, which will input a symbol. All multiple-key input operations are indicated like this. Key cap markings are shown, followed by the input character or command in parentheses.

u m EQUA

This indicates you should first press m, use the cursor keys (f, c, d, e) to select the EQUA mode, and then press w. Operations you need to perform to enter a mode from the Main Menu are indicated like this.

uFunction Keys and Menus

•Many of the operations performed by this calculator can be executed by pressing function

keys 1 through 6. The operation assigned to each function key changes according to the mode the calculator is in, and current operation assignments are indicated by function menus that appear at the bottom of the display.

• This user’s guide shows the current operation assigned to a function key in parentheses

following the key cap for that key. 1(Comp), for example, indicates that pressing 1 selects {Comp}, which is also indicated in the function menu.

•When (g) is indicated in the function menu for key 6, it means that pressing 6 displays

the next page or previous page of menu options.

uMenu Titles

•Menu titles in this user’s guide include the key operation required to display the menu

being explained. The key operation for a menu that is displayed by pressing K and then {MAT} would be shown as: [OPTN]-[MAT].

• 6(g) key operations to change to another menu page are not shown in menu title key

operations.

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0-1-1

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1-2-2 Display

Icon Mode Name Description

S•SHT Use this mode to perform spreadsheet calculations. Each file (Spreadsheet) contains a 26-column ⋅ 999-line spreadsheet. In addition to

the calculator’s built-in commands and S

•

SHT mode

commands, you can also perform statistical calculations and graph statistical data using the same procedures that you use in the STATmode.

GRAPH Use this mode to store graph functions and to draw graphs

using the functions.

DYNA Use this mode to store graph functions and to draw multiple (Dynamic Graph) versions of a graph by changing the values assigned to the

variables in a function.

TABLE Use this mode to store functions, to generate a numeric

table of different solutions as the values assigned to variables in a function change, and to draw graphs.

RECUR Use this mode to store recursion formulas, to generate a (Recursion) numeric table of different solutions as the values assigned to

variables in a function change, and to draw graphs.

CONICS Use this mode to draw graphs of conic sections.

EQUA Use this mode to solve linear equations with two through six (Equation) unknowns, quadratic equations, and cubic equations.

PRGM Use this mode to store programs in the program area and to (Program) run programs.

TVM Use this mode to perform financial calculations and to draw (Financial) cash flow and other types of gra phs. to make

LINK Use this mode to transfer memory contents or back-up data

to another unit or PC.

MEMORY Use this mode to manage data stored in memory.

SYSTEM Use this mode to initialize memory, adjust contrast, and to

make other system settings.

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kk kAbout the Function Menu

Use the function keys (1 to 6) to access the menus and commands in the menu bar

along the bottom of the display screen. You can tell whether a menu bar item is a menu or a

command by its appearance.

• Next Menu

Example:

Selecting displays a menu of hyperbolic functions.

• Command Input

Example:

Selecting inputs the sinh command.

• Direct Command Execution

Example:

Selecting executes the DRAW command.

kk kAbout Display Screens

This calculator uses two types of display screens: a text screen and a graph screen. The text

screen can show 21 columns and 8 lines of characters, with the bottom line used for the

function key menu. The graph screen uses an area that measures 127 (W) ⋅ 63 (H) dots.

Text Screen Graph Screen

The contents of each type of screen are stored in independent memory areas.

Press!6(G T) to switch between the graph screen and text screen.

1-2-3 Display

1-2-2

Display

1-2-3

Display

5-1-1

Sample Graphs

5-1-2

Sample Graphs

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Example To graph y = 3

Procedure

1m GRAPH

2dvxw

36(DRAW) (or w)

Result Screen

#Pressing Awhile a graph is on the display

will return to the screen in step 2.

Getting Acquainted

uGraphs

As a general rule, graph operations are shown on facing pages, with actual graph examples on the right hand page. You can produce the same graph on your calculator by performing the steps under the Procedure above the graph. Look for the type of graph you want on the right hand page, and then go to the page indicated for that graph. The steps under “Procedure” always use initial RESET settings.

The step numbers in the “Set Up” and “Execution” sections on the left hand page correspond to the “Procedure” step numbers on the right hand page.

Example:

Left hand page Right hand page

3. Draw the graph. 3 5(DRAW)(or w)

uCommand List

The PRGM Mode Command List (page 8-7) provides a graphic flowchart of the various function key menus and shows how to maneuver to the menu of commands you need.

Example: The following operation displays Xfct: [VARS]-[FACT]-[Xfct]

5-1 Sample Graphs

kkkkkHow to draw a simple graph (1)

Description

Todraw a graph, simply input the applicable function.

Set Up

1. From the Main Menu, enter the GRAPH Mode.

Execution

2.Input the function you want to graph. Here you would use the V-Window to specify the range and other parameters of the graph. See 5-2-1.

3.Draw the graph.

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uPage Contents

Three-part page numbers are centered at the top of each page. The page number “1-2-3”, for example, indicates Chapter 1, Section 2, page 3.

uSupplementary Information

Supplementary information is shown at the bottom of each page in a “ (Notes)” block.

indicates a note about a term that appears in the same page as the note.

# indicates a note that provides general information about topic covered in the same section as the note.

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Chapter

Basic Operation

1-1 Keys

1-2 Display

1-3 Inputting and Editing Calculations

1-4 Option (OPTN) Menu

1-5 Variable Data (VARS) Menu

1-6 Program (PRGM) Menu

1-7 Using the Setup Screen

1-8 Using Screen Capture

1-9 When you keep having problems…

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1-1 Keys

1-1-1 Keys

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k Key Table

Page Page Page Page Page Page

1-1-2 Keys

5-11-1

5-2-7 5-2-1

1-6-1

5-10-1 5-11-9

1-7-1

1-1-3 1-4-1 1-5-1 1-2-1

2-4-7 2-4-5

1-1-3 2-4-7 2-4-5

2-4-10

2-4-5 2-4-5

2-4-12

2-4-11

2-4-7

2-1-1

2-4-4 2-4-4

2-4-7

10-3 -13 10 -3 -12

2-1-1

Page Page Page Page Page

1-8-1

1-3-5

1-3-7

1-3-2

1-3-1

1-3-7

2-1-1

1-2-3

2-4-4

2-2-1

2-1-1

3-1-2

2-8-11

2-6-2 2-4-4

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2-1-1

2-2-5

2-1-12-1-1

2-1-1

1-1-3 Keys

k Key Markings

Many of the calculator’s keys are used to perform more than one function. The functions marked on the keyboard are color coded to help you find the one you need quickly and easily.

Function Key Operation

1 log l

2 10

3 B al

The following describes the color coding used for key markings.

Color Key Operation

Orange Press ! and then the key to perform the marked function.

Red Press a and then the key to perform the marked function.

# Alpha Lock

Normally, once you press a and then a key to input an alphabetic character, the keyboard reverts to its primary functions immediately.

If you press ! and then a, the keyboard locks in alpha input until you press a again.

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1-2-1

Display

1-2 Display

k Selecting Icons

This section describes how to select an icon in the Main Menu to enter the mode you want.

u To select an icon

1. Press m to display the Main Menu.

2. Use the cursor keys (d, e, f, c) to move the highlighting to the icon you want.

Currently selected icon

3. Press w to display the initial screen of the mode whose icon you selected.

Here we will enter the STAT mode.

•You can also enter a mode without highlighting an icon in the Main Menu by inputting the number or letter marked in the lower right corner of the icon.

The following explains the meaning of each icon.

Icon Mode Name Description

•

RUN

MAT Use this mode for arithmetic calculations and function

•

(Run

Matrix) calculations, and for calculations involving binary, octal,

STAT Use this mode to perform single-variable (standard deviation) (Statistics) and paired-variable (regression) statistical calculations, to

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ACT eActivity lets you input text, math expressions, and other data

(eActivity) in a notebook-like interface. Use this mode when you want to

decimal, and hexadecimal values and matrices.

perform tests, to analyze data and to draw statistical graphs.

store text or formulas, or built-in application data in a file.

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