Texas instruments TI-NSPIRE Learning and Technology Handheld Part 2

CAS

Learning and Technology

Handheld

Part 2

This guidebook applies to TI-Nspire™ software version 1.4. To obtain the latest version of the documentation, go to education.ti.com/guides.

Important Information

Except as otherwise expressly stated in the License that accompanies a program, Texas Instruments makes no warranty, either express or implied, including but not limited to any implied warranties of merchantability and fitness for a particular purpose, regarding any programs or book materials and makes such materials available solely on an "as-is" basis. In no event shall Texas Instruments 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, and the sole and exclusive liability of Texas Instruments, regardless of the form of action, shall not exceed the amount set forth in the license for the program. Moreover, Texas Instruments shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party.

Macintosh®, Windows®, Excel®, Vernier EasyLink®, EasyTemp®, Go!®Link, Go!®Motion, and Go!®Temp are trademarks of their respective owners.

Contents

Important Information................................................................... ii

Introduction ............................................................................1

The TI-Nspire™ CAS math and science

learning handheld.................................................................... 1

How to use this guidebook............................................................ 1

Where to find more information...........................................2

Transferring Files ....................................................................3

Connecting two handhelds ....................................................3

Using connection cables................................................................. 3

USB cables................................................................................ 3

Connecting two TI-Nspire™ CAS handhelds

with the USB unit-to-unit cable........................................... 3

Backing up files to a computer .............................................. 4

Transferring documents ................................................................. 4

Rules for transferring files......................................................4

Sending a document............................................................... 4

Receiving a document............................................................. 5

Canceling a transfer................................................................ 5

Upgrading the Operating System ................................................. 9

Important Operating System download

information...........................................................................9

Where to get Operating System upgrades............................ 9

Transferring the Operating System........................................ 9

Important:..............................................................................10

OS Upgrade Messages........................................................... 11

Memory and file management ............................................15

Checking available memory......................................................... 15

Displaying the Handheld Status screen ............................... 15

Freeing memory ........................................................................... 15

Deleting items from memory ............................................... 15

Backing up files to another handheld................................. 16

Backing up files to a computer ............................................ 16

Resetting the memory.................................................................. 16

Using Calculator....................................................................19

Getting started with the Calculator application ........................ 19

Before you begin................................................................... 25

Entering and evaluating math expressions ................................ 25

Options for entering expressions......................................... 25

iii

Entering simple math expressions........................................ 25

Controlling the form of a result...........................................26

Inserting items from the Catalog .........................................27

Using an expression template...............................................28

Creating matrices...................................................................29

Inserting a row or column into a matrix..............................30

Inserting expressions using a wizard....................................30

Creating a piecewise function..............................................32

Creating a system of equations ............................................32

Deferring evaluation.............................................................33

Working with variables................................................................33

Storing a value in a variable.................................................33

Alternative methods for storing a variable .........................34

Checking a variable’s value...................................................34

Using a variable in a calculation...........................................34

Updating a variable...............................................................35

Types of variables ..................................................................35

Entering multiple statements on the entry line..................36

Rules for naming variables....................................................36

Reusing the last answer ........................................................37

Temporarily substituting a value for a variable...................38

Creating user-defined functions and programs..........................38

Defining a single-line function.............................................38

Defining a multiple-line function

using templates .................................................................. 39

Defining a multiple-line function manually ........................40

Defining a program...............................................................41

Recalling a function or program definition.........................43

Editing Calculator expressions..................................................... 43

Positioning the cursor in an expression ...............................43

Inserting into an expression in the entry line......................43

Selecting part of an expression ............................................44

Deleting all or part of an expression on

the entry line ...................................................................... 44

Financial calculations....................................................................44

Using the Finance Solver.......................................................44

Finance functions included...................................................45

Working with the Calculator history ...........................................46

Viewing the Calculator history.............................................46

Reusing a previous expression or result...............................46

Deleting an expression from the history.............................. 47

Clearing the Calculator history.............................................47

Using Graphs & Geometry ................................................... 49

Getting started with Graphs & Geometry...................................49

Getting acquainted with Graphs & Geometry .................... 49

The Tool menu.............................................................................. 50

Using the context menu ....................................................... 59

The work area............................................................................... 60

The Graphing view................................................................ 60

The Plane Geometry view..................................................... 61

The analytic window............................................................. 62

To remove the analytic window from

the work area ..................................................................... 63

Creating and manipulating axes..........................................66

Moving about the work area ............................................... 69

Turning the grid on or off .................................................... 69

Attaching an object to the grid ........................................... 70

The Zoom feature ................................................................. 71

The entry line................................................................................ 74

Additional Graphs & Geometry features ....................................76

Keystroke shortcuts...............................................................76

Using the tab and arrow keys .............................................. 76

Using Sliders .......................................................................... 77

Opening and exporting files ................................................ 80

Attribute settings.................................................................. 80

Changing the thickness and style of a

line/outline.......................................................................... 83

Locking measured values and points................................... 83

Working with functions ............................................................... 84

Using the entry line............................................................... 84

Using the entry line expand button..................................... 85

Graphing a family of functions ............................................ 86

Using the Text tool to enter functions................................. 87

Graphing inequalities ........................................................... 88

Renaming f(x)........................................................................ 89

Editing functions................................................................... 90

Hiding a function on the work area .................................... 91

Deleting a function............................................................... 92

Clearing the work area ................................................................ 92

The Trace tools.............................................................................. 92

Using Graph Trace ................................................................. 93

Using Geometry Trace........................................................... 94

Using Erase Geometry Trace ................................................. 95

Manually manipulating functions............................................... 96

Manipulating a linear function............................................ 97

Manipulating a quadratic function...................................... 97

Manipulating a sine or cosine function...............................98

Working with multiple objects at one time................................ 99

Selecting multiple objects..................................................... 99

Deleting multiple selections............................................... 100

Moving multiple selections.................................................100

Drawing and working with points and lines ............................100

Points........................................................................................... 101

Creating a point...................................................................101

Creating a point on a specific object..................................101

Defining an intersection point(s)........................................102

Labeling (identifying) a point.............................................103

Naming a point ...................................................................104

Redefining a point...............................................................104

Linear objects..............................................................................105

Creating a line .....................................................................106

Creating a ray ......................................................................106

Creating a line segment......................................................107

Creating a line segment with defined

midpoint............................................................................107

Creating a parallel line........................................................109

Creating a perpendicular line.............................................110

Creating a vector ................................................................. 111

Moving a vector...................................................................112

Resizing a vector..................................................................112

Creating a tangent ..............................................................112

Creating and working with objects (shapes) ............................113

Creating a circle...................................................................113

Moving a circle.....................................................................114

Resizing a circle....................................................................114

Creating a triangle ..............................................................117

Moving a triangle................................................................118

Reshaping a triangle ...........................................................118

Creating a rectangle............................................................ 118

Creating a polygon..............................................................120

Moving a polygon ...............................................................121

Reshaping a polygon...........................................................121

Creating a regular polygon.................................................121

Creating a circle arc.............................................................122

Transferring Measurements .......................................................124

Transferring a measurement...............................................124

Transferring a numerical text entry to an axis...................125

Transferring a measurement onto a circle.........................126

Measuring graphs and objects...................................................127

Identifying equations for circles and lines.........................127

Measuring length ................................................................128

Finding the area of a circle, polygon,

rectangle or triangle ........................................................129

Finding the perimeter of a circle, polygon,

rectangle or triangle ........................................................130

Finding the measure of an angle ....................................... 130

Defining an angle with three points ................................. 131

Repositioning a measured value........................................ 132

Finding the slope of a line, ray,

segment or vector ............................................................ 132

Adding text to the work area ............................................ 133

Moving text .........................................................................134

Using the Calculate tool .....................................................134

Exploring functions, graphs, and objects.................................. 135

Finding points of interest: zeroes,

minima, maxima............................................................... 136

Finding the definite integral of a function ....................... 137

Finding the derivative of a function

at a point (the slope)........................................................ 138

Transformations.......................................................................... 139

Exploring symmetry ............................................................140

Exploring reflection ............................................................140

Exploring translation .......................................................... 141

Exploring rotation............................................................... 142

Exploring dilation................................................................ 143

Other investigations................................................................... 145

Bisecting a segment defined on a line............................... 145

Bisecting a segment ............................................................ 146

Bisecting an implied segment ............................................ 147

Bisecting an angle............................................................... 148

Bisecting an implied angle .................................................149

Creating a locus................................................................... 150

Animating objects ...................................................................... 152

Animating one point on an object .................................... 152

The animation control panel.............................................. 153

Changing the animation of a point

in motion .......................................................................... 154

Pausing and resuming animation ...................................... 154

Resetting animation............................................................ 154

Stopping animation ............................................................ 154

Plotting collected data............................................................... 155

Creating a scatter plot ........................................................ 155

Using Lists & Spreadsheet ..................................................159

Getting started with tables........................................................ 159

Before you begin................................................................. 163

Navigating in a spreadsheet............................................... 163

Inserting a cell range into a formula .................................164

Methods of entering data .................................................. 166

Entering a math expression, text, or

spreadsheet formula ........................................................ 167

vii

Working with individual cells ....................................................167

Creating absolute and relative

cell references...................................................................167

Inserting items from the Catalog .......................................169

Deleting the contents of a cell or

block of cells .....................................................................171

Copying a cell or block of cells ...........................................172

Filling adjacent cells ............................................................173

Sharing a cell value as a variable........................................ 174

Linking a cell to a variable..................................................174

Preventing name conflicts...................................................175

Working with rows and columns of data..................................176

Selecting a row or column ..................................................176

Resizing a row or column....................................................176

Inserting an empty row or column.....................................176

Deleting entire rows or columns ........................................177

Copying rows or columns....................................................178

Moving a column.................................................................178

Clearing column data.................................................................179

Sorting data ................................................................................181

Sorting a range of cells in a column...................................181

Sorting a rectangular region ..............................................183

Sorting entire columns........................................................184

Generating columns of data ......................................................185

Creating column values based on

another column ................................................................186

Generating a list of random numbers................................187

Generating a numerical sequence......................................187

Creating and sharing spreadsheet data as lists.........................189

Sharing a spreadsheet column as a list variable................ 189

Linking to an existing list variable......................................192

Inserting an element in a list..............................................192

Deleting an element from a list..........................................193

Graphing spreadsheet data........................................................193

Capturing data from Graphs & Geometry.................................195

Capturing data manually....................................................195

Capturing data automatically.............................................197

Creating function tables.............................................................198

Showing and Hiding function tables..................................199

Generating a function table ...............................................200

Adding a function table from

Graphs & Geometry..........................................................201

Viewing values in a function table.....................................202

Editing a function................................................................203

Changing the settings for a function table .......................203

Deleting a column in the function table............................204

viii

Using table data for statistical analysis..................................... 204

Plotting statistical data.......................................................204

Statistical calculations ................................................................ 205

Performing a statistical calculation.................................... 205

Supported Statistical Calculations...................................... 208

Distributions ...............................................................................212

Calculating distributions..................................................... 213

Supported Distribution functions ...................................... 214

Confidence Intervals................................................................... 220

Supported Confidence Intervals......................................... 220

Stat tests...................................................................................... 223

Supported Statistical tests ..................................................223

Statistics Input Descriptions....................................................... 230

Using Data & Statistics .......................................................233

The Tool menu............................................................................ 234

Getting started with Data & Statistics....................................... 242

Creating plots from spreadsheet data ......................................242

Plotting data using the Quick Graph tool .........................242

Plotting data on a new Data

& Statistics page ............................................................... 245

Numeric plot types ..................................................................... 248

Dot plots .............................................................................. 248

Box plots .............................................................................. 250

Histograms........................................................................... 256

Normal probability plots..................................................... 263

Scatter Plots......................................................................... 264

X-Y line plots ....................................................................... 266

Creating multiple plots....................................................... 267

Categorical plot types ................................................................ 268

Dot charts....................................................................................268

Creating a dot chart............................................................ 269

Bar charts............................................................................. 271

Pie charts.............................................................................. 272

Plotting data using a Categorical split...............................274

Exploring data ............................................................................277

Moving points or bins of data............................................ 277

Selecting multiple points.................................................... 279

Selecting a range of points................................................. 281

Changing plot type ............................................................. 285

Rescaling a graph................................................................ 286

Adding a movable line........................................................ 289

Rotating a movable line .....................................................290

Showing regression lines .................................................... 293

Showing residual squares ................................................... 294

Showing a residual plot ......................................................294

Removing a residual plot....................................................295

Using Window/Zoom tools.........................................................297

Graphing Functions ....................................................................299

Graphing functions using the

Plot Function tool.............................................................299

Entering functions from other

applications.......................................................................300

Editing a function................................................................303

Using Data & Statistics functions

in other applications ........................................................303

Using Show Normal PDF......................................................303

Using Shade Under Function ..............................................304

Using Graph Trace.......................................................................306

Using other Data & Statistics tools ............................................308

Inserting text........................................................................308

Hiding text ...........................................................................309

Using Sliders.........................................................................309

Using Statistical Tools .................................................................313

Using Notes......................................................................... 315

Getting started with the Notes application..............................315

The Notes tool menu..................................................................316

Before you begin.................................................................317

The Notes work area ..................................................................317

Notes templates..........................................................................318

Applying a Notes template.................................................318

Using the Q&A Template ....................................................318

Using the Proof Template ...................................................318

Inserting comments ....................................................................319

Formatting Notes text ................................................................320

Selecting text .......................................................................320

Applying a text format........................................................320

Inserting geometric shape symbols....................................320

Entering and evaluating math expressions...............................321

Entering an expression........................................................321

Evaluating an expression ....................................................321

Evaluating part of an expression........................................321

Using Question ................................................................... 323

Understanding the Question toolbar........................................ 323

Navigating in the Question application....................................323

Answering questions ..................................................................323

Answering single-answer questions...................................324

Answering questions with multiple answers..................... 324

Working with TI-Nspire™ libraries.....................................325

What is a library?........................................................................ 325

Creating libraries and library objects........................................326

Private and Public library objects .............................................. 326

Using short and long names............................................... 327

Using library objects................................................................... 327

Using a public library object............................................... 327

Using a private library object ............................................. 328

Creating shortcuts to library objects.........................................328

Included libraries........................................................................ 329

Restoring an included library ....................................................329

Programming ......................................................................331

Overview of the Program Editor ............................................... 331

The Program Editor menu ......................................................... 332

Defining a program or function................................................335

Starting a new Program Editor .......................................... 335

Entering lines into a function or program ........................ 336

Inserting comments............................................................. 337

Checking syntax................................................................... 338

Storing the function or program ....................................... 338

Viewing an existing program or function................................. 339

Opening an existing function or program................................ 340

Importing a program from a library ......................................... 340

Creating a copy of a function or program................................ 341

Renaming a program or function ............................................. 341

Changing the library access level .............................................. 341

Finding text.................................................................................342

Finding and replacing text......................................................... 342

Closing the current function or program ................................. 343

Running programs and evaluating functions........................... 343

Using short and long names............................................... 344

Using a Public library function or program ....................... 344

Using a Private library function or program ..................... 345

Running a non-library program or function ..................... 345

Interrupting a running program........................................346

Getting values into a program .................................................. 346

Example of passing values to a program........................... 347

Displaying information .............................................................. 347

Using local variables................................................................... 348

Example of a local variable................................................. 348

What causes an undefined

variable error message?................................................... 348

You must initialize local variables......................................349

Performing symbolic calculations....................................... 349

Differences between functions and programs .........................349

Calling one program from another...........................................350

Calling a separate program ................................................350

Defining and calling an internal subroutine .....................350

Notes about using subroutines...........................................351

Avoiding circular-definition errors .....................................351

Controlling the flow of a function or program........................352

Using If, Lbl, and Goto to control program flow......................352

If command..........................................................................352

If...Then...EndIf structures...................................................353

If...Then...Else... EndIf structures.........................................353

If...Then...ElseIf... EndIf structures......................................354

Lbl and Goto commands .....................................................354

Using loops to repeat a group of commands ...........................355

For...EndFor loops................................................................355

While...EndWhile loops.......................................................356

Loop...EndLoop loops..........................................................357

Repeating a loop immediately ...........................................358

Lbl and Goto loops.............................................................. 358

Changing mode settings ............................................................358

Setting a mode ....................................................................358

Debugging programs and handling errors ...............................359

Techniques for debugging..................................................359

Error-handling commands .................................................. 359

Data Collection ................................................................... 361

Compatible sensor interfaces.....................................................361

Analyzing experimental data.....................................................361

Launching the Data Collection Console....................................362

Using Auto Launch .............................................................. 362

Manually starting the Data

Collection Console............................................................363

Getting started with the Data

Collection Console ................................................................366

Using the Data Collection Console.....................................366

Accessing the context menu ...............................................367

Data Collection Console buttons........................................367

Data Collection Console menus .................................................369

Running an experiment and collecting data ............................372

Data Collection variable names.................................................375

Storing collected data ................................................................375

Retrieving stored experimental results .....................................375

Troubleshooting the Data Collection Console..........................376

xii

Appendix: Service and Support .........................................379

Texas Instruments Support and Service..................................... 379

For general information ..................................................... 379

Service and warranty information ..................................... 379

Service ......................................................................................... 379

Battery Precautions .................................................................... 379

Disposing of Batteries......................................................... 380

Index....................................................................................381

xiii

xiv

Introduction

The TI-Nspire™ CAS math and science learning handheld

This guidebook provides information about a powerful, advanced learning handheld available from Texas Instruments: the TI-Nspire™ CAS handheld.

Your learning handheld comes equipped with a variety of pre-installed software applications that have features relevant to many different subjects and curriculums.

Extend the reach of your TI-Nspire™ CAS handheld with accessories, such as the TI-Nspire™ CAS math and science learning software, TI-Nspire™ ViewScreen™ Panel, TI-Nspire™ Connections Cradle and TI-Nspire™ Computer Link Software.

How to use this guidebook

This guidebook is intended to supplement the printed guidebook that accompanied your TI-Nspire™ CAS handheld.

The chapters in this guidebook include: Transferring Files- Provides instruction for connecting and transferring

data and files between two TI-Nspire™ CAS handhelds. Memory Management - Includes instruction for checking memory on

your handheld, and freeing memory if you need additional space. Using the TI-Nspire™ Computer Link Software - Provides instruction

for transferring documents between handhelds, capturing images from your handheld, backing up contents and updating the Operating System (OS) on your TI-Nspire™ CAS handheld.

Using Calculator - Provides detailed instruction for using the Calculator application.

Using Graphs & Geometry - Provides detailed instruction for using the Graphs & Geometry application.

Using Lists & Spreadsheet - Provides detailed instruction for using the Lists & Spreadsheet application.

Using Data & Statistics - Provides detailed instruction for using the Data & Statistics application.

Using Notes - Provides detailed instruction for using the Notes application.

Introduction 1

Libraries - Provides detailed instruction for using TI-Nspire™ libraries of variables, functions, and/or programs that have been defined as library objects

Programming - Provides detailed instruction for using user-defined functions and programs.

Data Collection - Provides detailed steps for collecting experimental information from a sensor and automatically display it in a table and/or graph for analysis.

Service and Warranty Information - Includes service and warranty information and contact information for technical support.

Where to find more information

Additional product information is available in printed guidebook that accompanied your TI-Nspire™ CAS handheld. An electronic version of the printed guidebook for using the TI-Nspire™ CAS handheld is included on the CD-ROM that came with your learning handheld. This guidebook is also available online as a free download at education.ti.com/guides.

2 Introduction

Transferring Files

Connecting two handhelds

This chapter describes how to connect one TI-Nspire™ CAS handheld to another, and how to transfer files between them. The TI-Nspire™ CAS handheld has a USB port which allows it to communicate with another TI-Nspire™ CAS handheld.

When the TI-Nspire™ CAS handheld is using TI-Nspire™ TI-84 Plus keypad, it can connect with another TI-Nspire™ CAS handheld using the TI-Nspire™ TI-84 Plus keypad or a TI-84 Plus using the USB port or the I/O port.

Using connection cables

Your TI-Nspire™ CAS handheld comes with connection cables that allow you to share files with both a computer and another handheld.

USB cables

You can use USB cables to connect two TI-Nspire CAS handhelds, to connect a TI-Nspire CAS handheld to a computer.

Connecting two TI-Nspire™ CAS handhelds with the USB unit-to-unit cable

You can connect two handhelds this way as long as both handhelds are using the same keypad. You cannot connect a handheld using the TI-Nspire™ TI-84 Plus keypad to a handheld using the native TI-Nspire keypad.

The TI-Nspire™ CAS handheld USB A port is located at the center of the top of the TI-Nspire CAS handheld.

1. Firmly insert either end of the USB unit-to-unit cable into the USB A port.

2. Insert the other end of the cable into the receiving unit’s USB A port.

Tra nsferring Files 3

Backing up files to a computer

Use the TI-Nspire™ Computer Link Software software to back up the contents of your handheld to a computer. TI-Nspire™ Computer Link Software is available on the product CD that came with your handheld.

Transferring documents

Rules for transferring files

• You can transfer documents and Operating System (OS) files.

• If a document with the same name as the one you are sending already exists on the receiving TI-Nspire™ handheld, the document will be renamed. The system appends a number to the name to make it unique. For example, if Mydata existed on the receiving TI-Nspire™ handheld, it would be renamed Mydata(2).

Both the sending and receiving units will display a message that shows the new name.

• There is a 255-character maximum length for a file name, including the entire path. If a transmitted file has the same name as an existing file on the receiving unit and the file names contain 255 characters, then the name of the transmitted file will be truncated to enable the software to follow the renaming scheme described in the previous bullet.

• All variables associated with the document being transmitted are transfered with the document.

• Transmissions will time out after 30 seconds.

Sending a document

1. Open My Documents.

Press c7.

2. Press the 5 and 6 keys on the NavPad to highlight the document you want to send.

3. Select

4. The file transfer begins. A progress bar displays to allow you to

4 Transferring Files

Send from the My Documents menu.

Press /c15.

follow the transfer. There is also a cancel button on the Sending... dialog to enable you to cancel the transmission while it in progress.

At the end of a successful transmission, the message "<Folder / File name> transferred as <Folder / File name>." displays. If the file had to be renamed on the receiving unit, the message will display the new file name.

Receiving a document

No action is required by the user of the receiving TI-Nspire™ CAS handheld. Units are automatically powered on when the cable is attached.

At the end of a successful transmission, the message "<Folder / File name> received." displays. If the file had to be renamed, the message will display the new file name.

Canceling a transfer

1. To cancel a transmission in-progress, press Cancel on the dialog of the sending unit. The user of either unit can also press

2. A link transmission error message displays.

3. Press

d or · to cancel the transmission error message.

Common error and notification messages

Shown on: Message and Description

Sending unit

"Transfer failed. Check cable

and try again."

This message displays if a cable is not attached to the sending unit’s link port. Remove and then reinsert the cable and try the document transmission again.

d or · to cancel the transmission

Press message.

Note: The sending unit may not always display this message. Instead, it may remain BUSY until you cancel the transmission.

Tra nsferring Files 5

Shown on: Message and Description

Sending unit

"Receiver does not have enough

storage space for file transfer."

This message displays when the receiving unit does not have enough memory to accept the file being transmitted.

The user of the receiving unit must free space in order to obtain the new file. To do this:

• Delete unneeded files.

• Store files on a computer for later retrieval, then delete them from the TI-Nspire™ CAS handheld.

Sending unit

"<folder>/<filename>

transferred as

<folder>/<filename(#)."

This message displays at the end of a successful transfer when the file had to be renamed because a file already exists on the receiving unit with the original name. The transmitted file is renamed by appending a number to the end of the name. Rename numbering always begins with (2) and can increment by one, as needed.

6 Transferring Files

Shown on: Message and Description

Sending unit

"<folder>/<filename>

transferred as

<folder>/<new filename>."

This message displays when a new folder is created on the receiving unit to contain the transmitted document.

Receiving unit

"<folder>/<filename(x)>

received."

This message displays if the receiving unit has a document with the same name as the document being sent.

"<new folder>/<new filename>

received."

This message displays when a new folder has been created to contain the transmitted document.

Tra nsferring Files 7

Shown on: Message and Description

Receiving unit

"Transfer failed. Check cable

and try again."

This message displays if the cable is not correctly attached to the receiving unit’s link port. Remove the cable then reattach it and try the transmission again.

Press

d or · to cancel the transmission

message.

8 Transferring Files

Upgrading the Operating System

You can upgrade the OS on your TI-Nspire™ CAS handheld using your computer and TI-Nspire™ Computer Link Software. You can also transfer the OS from one unit to another.

OS upgrade operations do not delete user documents. If there is not enough room on the receiving handheld for the upgrade, the sending handheld is notified. The only time documents can be affected by an OS installation is if the receiving handheld has a corrupted OS. In this situation, documents may be affected by OS restoration. It is a good practice to back up your important documents and folders before installing an updated operating system.

See the important information concerning batteries before performing an OS upgrade.

Important Operating System download information

It is always a good practice to install new batteries before beginning an OS download.

When in OS download mode, the Automatic Power Down feature does not function. If you leave your handheld in download mode for an extended time before you begin the downloading process, your batteries may become depleted. You will then need to replace the batteries with new batteries before downloading.

Where to get Operating System upgrades

For up-to-date information about available OS upgrades, check the Texas Instruments Web site at http://education.ti.com.

(APD)

You can download an OS upgrade from the Texas Instruments Web site to a computer, and use a USB computer cable to install the OS on your TI-Nspire™ CAS handheld.

For complete information, refer to the instructions in the chapter on TI-Nspire™ Computer Link Software.

Transferring the Operating System

To transfer the OS from unit to unit:

1. Connect the two units. (For details, see the connection instructions at the beginning of this chapter.) Any open documents on the receiving unit should be closed before the transfer begins.

2. On the sending unit, open My Documents.

Press

c7.

Tra nsferring Files 9

3. From the menu, select Send OS.

Press b9.

4. On the receiving unit, the message, "You are receiving an OS Upgrade. Unsaved changes will be lost. Would you like to continue?" displays along with Yes and No response buttons. Select Yes to receive the OS upgrade.

Notes:

• If Yes is not selected within 30 seconds, the unit automatically

responds with No, and the transmission is cancelled.

• It is important to save and close all open documents before

performing an OS Upgrade. Continuing with an OS Upgrade on a unit with an open, unsaved document will cause the loss of that data.

5. While the upgrade is in progress, the receiving unit displays, "Receiving OS. Do not unplug cable." The sending unit displays, "Sending OS. Do not unplug cable."

6. After the transfer completes, the sending unit receives a completion message and can unhook the cable. On the receiving unit, the OS must be installed. This happens automatically. During the installation process, the receiving unit displays the message, "Installing OS <version number>."

7. When the installation completes, the unit displays the following message, "OS <version number> has been installed. Handheld will now restart." The restart is initiated. If the sending unit is still attached to the cable, the successful transmission message remains displayed on that unit’s screen.

Important:

• For each receiving unit, remember to back up information, as necessary, and install new batteries.

• Be sure the sending unit is on the Send OS screen.

10 Transferring Files

OS Upgrade Messages

This section lists the information and error messages that can be displayed on units during an OS Upgrade.

Shown on: Message and Description

Sending unit

"Receiver does not have

enough storage space. Make

<xxxK> available."

This message displays when the receiving unit does not have enough memory available for the new OS. The space requirement is shown so you know how much memory must be cleared for the new operating system. Files can be moved to a computer for storage to free the necessary space.

Sending unit

"Receiver must change batteries before upgrading the OS."

This message displays when the batteries in the receiving unit need to be replaced. Send the OS Upgrade once the batteries are replaced.

Sending unit

"Receiver has a newer OS

and cannot load this OS."

This message displays when the receiving unit has a newer OS version that the one being transmitted. You cannot downgrade an OS.

Tra nsferring Files 11

Shown on: Message and Description

Sending unit

"Upgrade not accepted by

receiver."

This message displays when the receiving unit refuses the upgrade.

Sending unit

"OS has been transferred.

You can now unplug."

This message displays when the tranfer is completed and it is safe for the sending unit to unplug the cable.

Sending unit

"Sending OS. Do not

unplug cable."

This message, along with a progress bar, displays while the OS Upgrade is being transferred.

Both units

"Transfer failed. Check cable

and try again."

The sending and/or receiving unit is not properly connected. Reinsert the cable into each handheld, then try the transmission again.

12 Transferring Files

Shown on: Message and Description

Receiving unit

"You are receiving an OS Upgrade. Unsaved changes will be lost. Would you like

to continue?"

Receiving unit

Yes

This message displays when an OS Upgrade is about to begin. If you do not select Yes within 30 seconds, the system automatically responds with No.

"Receiving OS. Do not

unplug cable."

This message, along with a progress bar, displays while the OS Upgrade is being transferred.

"Installing OS."

This message displays once the transfer is completed. It is shown to keep you informed of the unit’s status.

"OS has been installed.

Handheld will restart."

This information message displays briefly before the unit automatically reboots.

Tra nsferring Files 13

Shown on: Message and Description

Receiving unit

"Install was corrupted.

Handheld will reboot. You

will need to retry OS

upgrade."

An error occurred during the transmission, and the installation was corrupted. The unit will reboot. After the reboot, reinstall the OS Upgrade.

14 Transferring Files

Memory and file management

Checking available memory

The Handheld Status screen shows the amount of memory (in bytes) used by all documents and variables on your TI-Nspire™ CAS handheld. The Handheld Status screen displays the following information:

• Storage Capacity

•Space Used

• Free Space

• Battery Status

Displaying the Handheld Status screen

f Select Handheld Status from the Home menu.

c83

Press

The Handheld Status window displays.

Freeing memory

If you have insufficient memory to store documents on your handheld, you must free memory to create the space you need. To free memory, you must delete documents and/or folders from memory. If you wish to keep the documents and folders for use later, you can back them up to another handheld or to a computer.

Deleting items from memory

If you have documents stored on your TI-Nspire™ CAS handheld that you no longer need, you can delete them from memory to create additional space.

Memory and file management 15

Before you delete documents from memory, consider restoring sufficient available memory by copying files to another handheld.

1. Open

2. Press

3. Select

My Documents.

Press c7.

£ or ¤ to select the folder or document you want to delete.

Delete.

Press /c26.

The folder/document is permanently removed from the handheld.

Backing up files to another handheld

To back up files to another TI-Nspire™ CAS handheld, follow the steps below. Complete instructions for connecting two handhelds are provided in the Connectivity chapter.

1. Connect the two handhelds using the USB-to-USB Connectivity Cable.

2. Open

3. Press the 5 and 6 keys to highlight the document you want to send.

4. Select

5. When the file transfer is complete, a message displays on the

My Documents on the sending unit.

Press c7.

Send from the Document menu.

Press /c15.

receiving unit.

Backing up files to a computer

Use the TI-Nspire™ Computer Link software to back up the contents of your handheld to a computer. TI-Nspire™ Computer Link software is available on the product CD that came with your handheld.

Resetting the memory

The Reset button on the underside of the handheld resets all memory. When resetting all memory on the TI-Nspire™ CAS handheld, RAM and Flash memory is restored to factory settings. All files will be deleted. All system variables are reset to default settings.

Caution: Before you reset all memory, consider restoring sufficient available memory by deleting only selected data.

To reset all memory on the handheld, follow these steps.

16 Memory and file management

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