Casio ClassPad II fx-CP400+E User manual

ClassPad II
fx-CP400+E
User’s Guide
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E

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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 ClassPad 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 backup copies of data to protect against its loss.
Backing Up Data
ClassPad data can be converted to a VCP file or XCP file and transferred to a computer for storage. For details,
see “19-2 Performing Data Communication between the ClassPad and a Personal Computer”.
• Be sure to keep all user documentation handy for future reference.
• The sample screens shown in this manual are for illustrative purposes only, and may not be exactly the
same as the screens actually produced by the ClassPad.
• The contents of this manual are subject to change without notice.
• No part of this manual may be reproduced in any form without the express written consent of the
manufacturer.
• 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.
• Windows®is a registered trademark or trademark of Microsoft Corporation in the United States and/or
other countries.
• Mac OS, OS X and macOS are registered trademarks or trademarks of Apple Inc. in the United States
and/or other countries.
• Fugue © 1999 – 2012 Kyoto Software Research, Inc. All rights reserved.
• Company and product names used in this manual may be registered trademarks or trademarks of their
respective owners.
• Note that trademark ™ and registered trademark ® are not used within the text of this manual.

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Contents
About This User’s Guide ..........................................................................................................................11
Chapter 1: Basics ................................................................................................................ 12
1-1 General Guide .........................................................................................................................12
ClassPad at a Glance...............................................................................................................................12
Turning Power On or Off ..........................................................................................................................13
1-2 Power Supply ..........................................................................................................................13
1-3 Built-in Application Basic Operations ..................................................................................14
Using the Application Menu......................................................................................................................14
Built-in Applications.................................................................................................................................. 14
Add-in Applications...................................................................................................................................15
Application Window.................................................................................................................................. 16
Using the OMenu...................................................................................................................................17
Interpreting Status Bar Information ..........................................................................................................17
Pausing and Terminating an Operation....................................................................................................17
1-4 Input .........................................................................................................................................18
Using the Soft Keyboard ..........................................................................................................................18
Soft Keyboard Key Sets ...........................................................................................................................18
Input Basics..............................................................................................................................................19
Various Soft Keyboard Operations...........................................................................................................22
1-5 ClassPad Data.........................................................................................................................27
Data Types and Storage Locations (Memory Areas) ...............................................................................27
Main Memory Data Types ........................................................................................................................28
Main Memory Folders...............................................................................................................................28
Using Variable Manager...........................................................................................................................29
Managing Application Files ......................................................................................................................32
1-6 Creating and Using Variables ................................................................................................33
Creating a New Variable ..........................................................................................................................33
Variable Usage Example..........................................................................................................................34
“library” Folder Variables.......................................................................................................................... 34
Rules Governing Variable Access............................................................................................................35
1-7 Configuring Application Format Settings.............................................................................36
Application Format Settings .....................................................................................................................36
Initializing All Application Format Settings................................................................................................42
1-8 When you keep having problems… ......................................................................................43
Chapter 2: Main Application ............................................................................................... 44
Main Application-Specific Menus and Buttons .........................................................................................44
2-1 Basic Calculations..................................................................................................................44
Arithmetic Calculations and Parentheses Calculations............................................................................44
Using the eKey..................................................................................................................................45
Omitting the Multiplication Sign................................................................................................................ 45
Using the Answer Variable (ans)..............................................................................................................45
Assigning a Value to a Variable ...............................................................................................................45
Calculation Priority Sequence ..................................................................................................................46
Calculation Modes....................................................................................................................................46
2-2 Using the Calculation History................................................................................................48
2-3 Function Calculations ............................................................................................................48
2-4 List Calculations .....................................................................................................................57
Inputting List Data in the Work Area.........................................................................................................57
LIST Variable Element Operations...........................................................................................................57

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Using a List in a Calculation..................................................................................................................... 57
Using a List to Assign Different Values to Multiple Variables................................................................... 57
2-5 Matrix and Vector Calculations .............................................................................................58
Inputting Matrix Data ................................................................................................................................58
Performing Matrix Calculations ................................................................................................................58
Using a Matrix to Assign Different Values to Multiple Variables............................................................... 59
2-6 Specifying a Number Base ....................................................................................................59
Binary, Octal, Decimal, and Hexadecimal Calculation Ranges................................................................ 59
Selecting a Number Base.........................................................................................................................60
Arithmetic Operations...............................................................................................................................60
Bitwise Operations ................................................................................................................................... 60
Using the baseConvert Function (Number System Transform) ............................................................... 61
2-7 Using the Action Menu ...........................................................................................................61
Abbreviations and Punctuation Used in This Section...............................................................................61
Example Screenshots .............................................................................................................................. 62
Using the Transformation Submenu.........................................................................................................62
Using the Advanced Submenu.................................................................................................................64
Using the Calculation Submenu............................................................................................................... 67
Using the Complex Submenu...................................................................................................................70
Using the List-Create Submenu ...............................................................................................................71
Using the List-Statistics and List-Calculation Submenus .........................................................................72
Using the Matrix-Create Submenu........................................................................................................... 75
Using the Matrix-Calculation and Matrix-Row&Column Submenus ......................................................... 76
Using the Vector Submenu ......................................................................................................................79
Using the Equation/Inequality Submenu .................................................................................................81
Using the Assistant Submenu ..................................................................................................................84
Using the Distribution/Inv.Dist Submenu..................................................................................................85
Using the Financial Submenu ..................................................................................................................90
Using the Command Submenu ................................................................................................................90
2-8 Using the Interactive Menu ...................................................................................................91
Interactive Menu Example........................................................................................................................91
Using the “apply” Command.....................................................................................................................91
2-9 Using the Main Application in Combination with Other Applications ...............................92
Using Another Application’s Window........................................................................................................92
Using the Stat Editor Window...................................................................................................................93
Using the Geometry Window....................................................................................................................93
2-10 Using Verify ...........................................................................................................................94
2-11 Using Probability ..................................................................................................................95
2-12 Running a Program in the Main Application ......................................................................96
Chapter 3: Graph & Table Application ............................................................................... 97
Graph & Table Application-Specific Menus and Buttons..........................................................................97
3-1 Storing Functions ...................................................................................................................99
Using Graph Editor Sheets.......................................................................................................................99
Storing a Function ....................................................................................................................................99
Graphing a Stored Function ...................................................................................................................100
Shading the Region Bounded by Two Expressions ...............................................................................101
Overlaying Two Inequalities in an Intersection Plot / Union Plot............................................................101
Saving Graph Editor Data to Graph Memory .........................................................................................102
3-2 Using the Graph Window .....................................................................................................102
Configuring View Window Parameters for the Graph Window............................................................... 102
Using View Window Memory..................................................................................................................104
Panning the Graph Window ...................................................................................................................104

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Scrolling the Graph Window...................................................................................................................105
Zooming the Graph Window...................................................................................................................105
Using Quick Zoom..................................................................................................................................106
Using Built-in Functions for Graphing.....................................................................................................106
Saving a Screenshot of a Graph ............................................................................................................107
Adjusting the Lightness (Fade I/O) of the Graph Window Background Image....................................... 107
3-3 Using Table & Graph.............................................................................................................108
Generating a Number Table...................................................................................................................108
Showing Linked Displays of Number Table Coordinates and Graph Coordinates (Link Trace)............. 109
Generating Number Table Values from a Graph....................................................................................110
Generating a Summary Table ................................................................................................................110
3-4 Using Trace ........................................................................................................................... 111
Using Trace to Read Graph Coordinates............................................................................................... 111
3-5 Using the Sketch Menu ........................................................................................................ 112
Using Sketch Menu Commands.............................................................................................................112
3-6 Analyzing a Function Used to Draw a Graph ..................................................................... 114
What You Can Do Using the G-Solve Menu Commands....................................................................... 114
Using G-Solve Menu Commands...........................................................................................................114
3-7 Modifying a Graph ................................................................................................................ 115
Modifying a Single Graph (Direct Modify)...............................................................................................115
Modifying Multiple Graphs Simultaneously (Dynamic Modify) ............................................................... 115
Chapter 4: Conics Application ..........................................................................................118
Conics Application-Specific Menus and Buttons....................................................................................118
4-1 Inputting an Equation........................................................................................................... 119
4-2 Drawing a Conics Graph ...................................................................................................... 119
Drawing a Parabola................................................................................................................................119
Drawing a Circle..................................................................................................................................... 120
Drawing an Ellipse..................................................................................................................................120
Drawing a Hyperbola..............................................................................................................................120
Drawing a General Conics .....................................................................................................................120
4-3 Using G-Solve to Analyze a Conics Graph.........................................................................120
What You Can Do Using the G-Solve Menu Commands....................................................................... 120
Using G-Solve Menu Commands...........................................................................................................121
4-4 Modifying a Graph (Dynamic Modify) .................................................................................121
Chapter 5: Differential Equation Graph Application....................................................... 122
Differential Equation Editor Window-Specific Menus and Buttons.........................................................122
Differential Equation Graph Window-Specific Menus and Buttons ........................................................122
5-1 Graphing a Differential Equation.........................................................................................123
Graphing a First Order Differential Equation..........................................................................................123
Graphing a Second Order Differential Equation.....................................................................................124
Graphing an Nth-order Differential Equation.......................................................................................... 124
Configuring and Modifying Initial Conditions ..........................................................................................125
Configuring Differential Equation Graph View Window Parameters ...................................................... 126
5-2 Drawing f( x) Type Function Graphs and Parametric Function Graphs...........................127
5-3 Using Trace to Read Graph Coordinates............................................................................127
5-4 Graphing an Expression or Value by Dropping It into the Differential Equation Graph
Window ..................................................................................................................................128
Chapter 6: Sequence Application .................................................................................... 129
Sequence Application-Specific Menus and Buttons...............................................................................129
6-1 Recursive and Explicit Form of a Sequence ......................................................................130
Generating a Number Table...................................................................................................................130

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Determining the General Term of a Recursion Expression.................................................................... 131
Calculating the Sum of a Sequence....................................................................................................... 131
6-2 Graphing a Recursion ..........................................................................................................131
Chapter 7: Statistics Application ..................................................................................... 132
7-1 Using Stat Editor...................................................................................................................132
Basic List Operations .............................................................................................................................132
Menus and Buttons Used for List Editing ...............................................................................................133
Using CSV Files .....................................................................................................................................134
7-2 Drawing a Statistical Graph .................................................................................................135
Operation Flow Up to Statistical Graphing .............................................................................................135
Graphing Single-Variable Statistical Data ..............................................................................................136
Graphing Paired-Variable Statistical Data..............................................................................................137
Overlaying a Regression Graph on a Scatter Plot .................................................................................139
Overlaying a Function Graph on a Statistical Graph..............................................................................140
Stat Graph Window Menus and Buttons ................................................................................................140
7-3 Performing Basic Statistical Calculations..........................................................................141
Calculating Statistical Values .................................................................................................................141
Performing Regression Calculations......................................................................................................143
Viewing the Results of the Last Statistical Calculation Performed (DispStat)........................................145
7-4 Performing Advanced Statistical Calculations ..................................................................145
Performing Test, Confidence Interval and Distribution Calculations Using the Wizard.......................... 145
Tests.......................................................................................................................................................146
Confidence Intervals...............................................................................................................................149
Distributions............................................................................................................................................151
Input and Output Terms .........................................................................................................................154
Chapter 8: Geometry Application .................................................................................... 156
Geometry Application-Specific Menus and Buttons ...............................................................................156
Configuring Geometry View Window Settings........................................................................................157
About the Geometry Format Dialog Box ................................................................................................157
8-1 Drawing Figures....................................................................................................................157
Drawing a Figure.................................................................................................................................... 157
Inserting Text Strings into the Screen ....................................................................................................161
Attaching an Angle Measurement to a Figure........................................................................................ 161
Displaying the Measurements of a Figure..............................................................................................161
Displaying the Result of a Calculation that Uses On-screen Measurement Values............................... 162
Using the Special Polygon Submenu..................................................................................................... 162
Using the Construct Submenu ...............................................................................................................163
8-2 Editing Figures......................................................................................................................167
Selecting and Deselecting Figures.........................................................................................................167
Moving and Copying Figures..................................................................................................................168
Pinning an Annotation on the Geometry Window...................................................................................168
Specifying the Number Format of a Measurement.................................................................................168
Specifying the Color and Line Type of a Displayed Object ....................................................................169
Changing the Display Priority of Objects................................................................................................169
8-3 Using the Measurement Box ...............................................................................................170
Viewing the Measurements of a Figure..................................................................................................170
Specifying and Constraining a Measurement of a Figure ......................................................................171
Using Sliders .......................................................................................................................................... 172
Changing a Label or Adding a Name to an Element.............................................................................. 174
8-4 Working with Animations.....................................................................................................174
Using Animation Commands..................................................................................................................174

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8-5 Using the Geometry Application with Other Applications................................................177
Drag and Drop........................................................................................................................................177
Copy and Paste......................................................................................................................................177
Chapter 9: Numeric Solver Application ........................................................................... 178
Numeric Solver Application-Specific Menus and Buttons ......................................................................178
Inputting an Equation .............................................................................................................................178
Solving an Equation ...............................................................................................................................178
Chapter 10: eActivity Application .................................................................................... 180
eActivity Application-Specific Menus and Buttons..................................................................................180
10-1 Creating an eActivity ..........................................................................................................180
Basic Steps for Creating an eActivity .....................................................................................................180
Inserting Data into an eActivity...............................................................................................................181
Inserting an Application Data Strip......................................................................................................... 182
Inserting a Geometry Link Row.............................................................................................................. 184
10-2 Transferring eActivity Files................................................................................................185
File Compatibility.................................................................................................................................... 185
Transferring eActivity Files between a ClassPad Unit and a Computer................................................. 185
Transferring eActivity Files between Two ClassPad Units.....................................................................185
Chapter 11: Financial Application.................................................................................... 186
11-1 Financial Application Basic Operations ...........................................................................186
Page Operations .................................................................................................................................... 187
Configuring Financial Application Settings............................................................................................. 188
11-2 Performing Financial Calculations....................................................................................189
11-3 Calculation Formulas .........................................................................................................189
Simple Interest ....................................................................................................................................... 189
Compound Interest.................................................................................................................................190
Cash Flow .............................................................................................................................................. 190
Amortization ...........................................................................................................................................191
Interest Conversion ................................................................................................................................ 191
Cost/Sell/Margin..................................................................................................................................... 192
Depreciation ...........................................................................................................................................192
Bond Calculation .................................................................................................................................... 192
Break-Even Point ................................................................................................................................... 193
Margin of Safety .....................................................................................................................................193
Financial Leverage................................................................................................................................. 193
Operating Leverage................................................................................................................................193
Combined Leverage............................................................................................................................... 193
Quantity Conversion...............................................................................................................................193
11-4 Financial Calculation Functions........................................................................................194
11-5 Input and Output Field Names...........................................................................................195
Chapter 12:Program Application .................................................................................... 196
Program Application-Specific Menus and Buttons .................................................................................196
12-1 Creating and Running Program ........................................................................................197
Creating a Program................................................................................................................................ 197
Running a Program ................................................................................................................................199
Terminating Program Execution.............................................................................................................200
Creating a Text File................................................................................................................................ 200
Using Text Files......................................................................................................................................201
Converting a Text File to a Program File................................................................................................201
Converting a Program File to an Executable File...................................................................................201

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12-2 Debugging a Program ........................................................................................................202
Debugging After an Error Message Appears .........................................................................................202
Debugging a Program Following Unexpected Results........................................................................... 202
Editing a Program...................................................................................................................................202
12-3 User-defined Functions......................................................................................................203
Creating a New User-defined Function ..................................................................................................203
Executing a User-defined Function ........................................................................................................204
Editing a User-defined Function............................................................................................................. 204
12-4 Program Command Reference ..........................................................................................205
Using This Reference.............................................................................................................................205
Syntax Conventions ............................................................................................................................... 205
Command List ........................................................................................................................................ 206
12-5 Including ClassPad Functions in Programs ....................................................................225
Including Graphing Functions in a Program........................................................................................... 225
Including Table & Graph Functions in a Program ..................................................................................225
Including Recursion Table and Recursion Graph Functions in a Program ............................................ 225
Including Statistical Graphing and Calculation Functions in a Program................................................. 225
Including Financial Calculation Functions in a Program.........................................................................225
Chapter 13: Spreadsheet Application.............................................................................. 226
Spreadsheet Window-Specific Menus and Buttons ...............................................................................226
Changing the Width of a Column ...........................................................................................................227
Option Settings.......................................................................................................................................228
13-1 Inputting and Editing Cell Contents..................................................................................228
Selecting Cells........................................................................................................................................228
Inputting Data into a Cell........................................................................................................................ 229
Inputting a Formula ................................................................................................................................229
Inputting a Cell Reference......................................................................................................................230
Cell Data Types (Text Data and Calculation Data) ................................................................................231
Inputting a Constant into a Calculation Data Type Cell..........................................................................231
Using the Cell Viewer Window ...............................................................................................................233
Changing the Text Color and Fill Color of Specific Cells........................................................................233
Copying or Cutting Cells and Pasting Them to Another Location ..........................................................234
Recalculating Spreadsheet Expressions................................................................................................234
Transferring Data between a Spreadsheet and CSV Files ....................................................................235
Importing and Exporting Variable Values............................................................................................... 235
13-2 Graphing..............................................................................................................................237
Basic Graphing Steps ............................................................................................................................237
Column Series and Row Series .............................................................................................................237
Graph Colors and Color Link..................................................................................................................238
Spreadsheet Graph Window-Specific Menus and Buttons ....................................................................239
Graph Menu and Graph Examples.........................................................................................................239
Regression Graph Operations (Curve Fitting)........................................................................................ 242
Other Graph Window Operations........................................................................................................... 243
13-3 Statistical Calculations ......................................................................................................244
Single-variable, Paired-variable and Regression Calculations............................................................... 245
Test and Interval Calculations................................................................................................................ 246
Distribution Calculations.........................................................................................................................248
About DispStat Command......................................................................................................................248
13-4 Cell and List Calculations ..................................................................................................249
Using the Cell Calculation Functions......................................................................................................249
Using the List Calculation Functions ......................................................................................................249

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Chapter 14: 3D Graph Application ................................................................................... 250
3D Graph Application-Specific Menus and Buttons ...............................................................................250
14-1 Inputting an Expression.....................................................................................................251
Using 3D Graph Editor Sheets............................................................................................................... 251
Storing a Function ..................................................................................................................................251
Graphing a Stored Function ...................................................................................................................252
14-2 Using the 3D Graph Window .............................................................................................253
Configuring 3D Graph View Window Parameters ..................................................................................253
Showing and Hiding Axes and Labels....................................................................................................254
Rotating the Graph................................................................................................................................. 255
3D Graph Example.................................................................................................................................255
Using Trace to Read Graph Coordinates............................................................................................... 255
Inserting Text into a 3D Graph Window .................................................................................................256
Calculating a z-value for Particular x- and y-values, or s- and t-values .................................................256
Chapter 15: Picture Plot Application ............................................................................... 257
Picture Plot Application-Specific Menus and Buttons.............................................................................258
15-1 Using the Plot Function .....................................................................................................259
Starting a Picture Plot Operation............................................................................................................259
Plotting Points on a c2p File Image........................................................................................................259
Plotting Points on a c2b File Image........................................................................................................260
Editing Plots on a Background Image ....................................................................................................261
Overlaying a Graph on Background Image Plots................................................................................... 261
G-Solve ..................................................................................................................................................263
Scrolling the Picture Plot Window ..........................................................................................................263
15-2 Using the Plot List ..............................................................................................................264
Using the Plot List Window to Edit Plots ................................................................................................264
Saving Data to and Importing Data from a Spreadsheet........................................................................264
Exporting Plot Data to and Importing Plot Data from a Variable ............................................................265
15-3 Displaying Plots on t-yor t-xCoordinates........................................................................265
15-4 Picture Plot Application Files ............................................................................................266
Chapter 16: Interactive Differential Calculus Application.............................................. 267
DiffCalc Table Window-Specific Menus and Buttons .............................................................................267
16-1 Learning about Tangents Using the [Tangent] Tab .........................................................268
16-2 Deriving the Derivative Using the [Deriv] Tab..................................................................269
16-3 Generating a Number Table and Graphing the First Derivative and Second Derivative
Using the [D Trace] Tab......................................................................................................271
Chapter 17: Physium Application .................................................................................... 273
Physium Application Menus and Buttons............................................................................................... 273
17-1 Periodic Table......................................................................................................................274
17-2 Fundamental Physical Constants .....................................................................................275
17-3 Precautions .........................................................................................................................277
Chapter 18: System Application ...................................................................................... 279
18-1 Managing Memory Usage ..................................................................................................279
Using the Storage Sheet ........................................................................................................................279
Using the Main Memory Sheet and eActivity Sheet ...............................................................................280
18-2 Configuring System Settings ............................................................................................281
System Application Menus and Buttons.................................................................................................281
Configuring System Settings.................................................................................................................. 281

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Chapter 19: Performing Data Communication................................................................ 285
19-1 Data Communication Overview.........................................................................................285
Using the ClassPad Communication Application ...................................................................................285
Select Connection Mode Dialog Box......................................................................................................286
19-2 Performing Data Communication between the ClassPad and a Personal Computer ..286
Connecting and Disconnecting with a Computer in the USB Flash Mode .............................................287
Transferring Data between the ClassPad and a Personal Computer ....................................................288
Installing an Add-in Application ..............................................................................................................289
Auto Import of VCP Files........................................................................................................................289
Rules for ClassPad Files and Folders....................................................................................................289
VCP and XCP File Operations ...............................................................................................................289
19-3 Performing Data Communication between Two ClassPads ...........................................291
Connecting to Another ClassPad Unit....................................................................................................291
Transferring Data between Two ClassPads...........................................................................................291
Communication Standby ........................................................................................................................ 293
Interrupting an Ongoing Data Communication Operation ......................................................................293
19-4 Connecting the ClassPad to a Data Logger .....................................................................293
Connecting a ClassPad to a Data Logger.............................................................................................. 293
19-5 Connecting the ClassPad to a Projector ..........................................................................294
Projecting ClassPad Screen Contents from a Projector.........................................................................294
Precautions when Connecting................................................................................................................294
Appendix ............................................................................................................................ 295
Character Code Table..................................................................................................................295
System Variable Table .................................................................................................................299
Graph Types and Executable Functions....................................................................................302
Error and Warning Message Tables ...........................................................................................303
Error Message Table .............................................................................................................................303
Warning Message Table ........................................................................................................................307
Low Memory Error Processing...............................................................................................................307
Resetting and Initializing the ClassPad.....................................................................................307
Number of Digits and Precision .................................................................................................308
Number of Digits.....................................................................................................................................308
Precision.................................................................................................................................................308
Display Brightness and Battery Life ..........................................................................................309
Display Brightness..................................................................................................................................309
Battery Life ............................................................................................................................................. 309
Specifications ..............................................................................................................................309
Exam Mode..........................................................................................................................311
Communication Application - Exam Mode Menu ...................................................................................311
Entering the Exam Mode........................................................................................................................311
ClassPad Operation in the Exam Mode .................................................................................................312
Exiting the Exam Mode ..........................................................................................................................312
Displaying Exam Mode Help ..................................................................................................................314

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About This User’s Guide
• The four digit boldface example numbers (such as 0201 ) that appear in Chapters 2 through 14 indicate
operation examples that can be found in the separate “Examples” booklet. You can use the “Examples”
booklet in conjunction with this manual by referring to the applicable example numbers.
• In this manual, cursor key operations are indicated as f, c, d, e(1-1 General Guide).

Chapter 1: Basics 12
Chapter 1:
Basics
This chapter provides a general overview of the ClassPad and application operations, as well as information
about input operations, the handling of data (variables and folders), file operations, and how to configure
application format settings.
1-1 General Guide
ClassPad at a Glance
3-pin data communication port
See Chapter 19 for details.
4-pin mini USB port
See Chapter 19 for details.
Touch screen
Icon panel
See “1-3 Built-in Application
Basic Operations”.
Cursor key*1
kkey
fkey*2
Exam Mode status LED
See “Exam Mode” for
details.
Stylus
Kkey
ckey
Keypad
*1 In this manual, cursor key operations are indicated as f, c, d, e.
*2 Certain functions (cut, paste, undo, etc.) or key input operations can be assigned to key combinations that
consist of pressing the fkey and a keypad key. For more information, see “18-2 Configuring System
Settings”.

Chapter 1: Basics 13
Turning Power On or Off
While the ClassPad is turned off, press cto turn it on.
To turn off the ClassPad, press fand then c.
Auto Power Off
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 “To configure power properties” on page 282.
Note
Any temporary information in ClassPad RAM (graphs drawn on an application’s graph window, a dialog box
displayed, etc.) is retained for approximately 30 seconds whenever power is turned off manually or by Auto
Power Off. This means you will be able to restore the temporary information in RAM if you turn ClassPad back
on within about 30 seconds after it is turned off. After about 30 seconds, the temporary information in RAM is
cleared automatically, so turning ClassPad back on will display the startup screen of the application you were
using when you last turned it off, and the previous information in RAM will no longer be available. In the Exam
Mode, temporary information in RAM is not cleared after 30 seconds after power is turned off.
1-2 Power Supply
Your ClassPad is powered by four AAA-size batteries LR03 (AM4), or four nickel-metal hydride batteries.
The battery level indicator is displayed in the status bar.
full medium low dead
Important!
• Be sure to replace batteries as soon as possible whenever the battery level indicator shows (low).
• Replace batteries immediately whenever the battery level indicator shows (dead). At this level, you will
not be able to perform data communication or other functions.
• For information about initial setup operations required after replacing batteries, see “Loading Batteries and
Setting Up the ClassPad” in the separate Quick Start Guide.
• When battery power is very low, your ClassPad may not turn back on when you press its ckey. If this
happens, immediately replace its batteries.
• The following message indicates that batteries are about to go dead. Replace batteries immediately whenever
this message appears.
If you try to continue using the ClassPad, it will automatically turn off. You will not be able to turn power back
on until you replace batteries.
• Be sure to replace batteries at least once a year, no matter how much you use the ClassPad during that time.
Note: The batteries that come with the ClassPad discharge slightly during shipment and storage. Because of
this, they may require replacement sooner than the normal expected battery life.
Backing Up Data
ClassPad data can be converted to a VCP file or XCP file and transferred to a computer for storage. For details,
see “19-2 Performing Data Communication between the ClassPad and a Personal Computer”.

Chapter 1: Basics 14
1-3 Built-in Application Basic Operations
This section explains basic information and operations that are common to all of the built-in applications.
Using the Application Menu
Tapping mon the icon panel displays the application menu. You can perform the operations below with the
application menu.
Tap a button to start up an
application. See “Built-in
Applications” below.
Tapping here scrolls
between application menu
pages.
The application menu page
can also be changed by
swiping the screen left or
right with the stylus or your
finger.
Tap here (or tap son the icon panel) to display the
next menu.
VCP file operations.
See page 289.
Starts touch panel alignment.
See page 284.
Displays version information.
See page 284.
Built-in Applications
The table below shows the application icons displayed on the application menu, and explains what you can do
with each application.
Tap this
icon:
To start this
application: To perform this type of operation:
Main
• General calculations, including function calculations
• Matrix calculations
• Computer Algebra System
eActivity • Create an eActivity file that can be used for input of formulas, text,
and other ClassPad application data
Statistics
• Create a list
• Perform statistical calculations
• Draw a statistical graph
Spreadsheet
• Input data into a spreadsheet
• Manipulate and/or graph spreadsheet data
• Perform statistical calculations and/or draw a statistical graph
Graph & Table
• Draw a graph
• Register a function and create a table of solutions by substituting
different values for the function’s variables
3D Graph • Draw a 3-dimensional graph of an equation in the form z= f( x, y) or of
a parametric equation
Geometry • Draw geometric figures
• Build animated figures

Chapter 1: Basics 15
Tap this
icon:
To start this
application: To perform this type of operation:
Picture Plot
• Plot points (that represent coordinates) on a photograph, illustration,
or other graphic and perform various types of analysis based on the
plotted data (coordinate values)
Interactive Differential
Calculus
• Learn about the differential coefficients and/or derivative formulas that
are the foundation of differentiation
Conics • Draw the graph of a conics section
Differential Equation
Graph • Draw vector fields and solution curves to explore differential equations
Numeric Solver • Obtain the value of any variable in an equation, without transforming
or simplifying the equation
Sequence • Perform sequence calculations
• Solve recursion expressions
Financial • Perform simple interest, compound interest, and other financial
calculations
Program • Input a program or run a program
• Create a user-defined function
E-CON3 • Control the optionally available Data Logger
(See the separate E-CON3 User’s Guide.)
Communication • Exchange data with another ClassPad, a computer, or another device
System
• Manage ClassPad memory (main memory, eActivity area, storage
area)
• Configure system settings
Tip: You can also start up the Main application by tapping Mon the icon panel.
Add-in Applications
You can download add-in applications (as c2a files) from the CASIO website, install them on your ClassPad,
and use them the same way you use built-in applications. The table below shows the add-in applications that
are currently available.
Icon Application Description
Physium
• Find elements and display the atomic number, chemical symbol,
atomic weight and other information from the periodic table of
elements
• Display various physical constants
Note
You can delete all add-in applications using one of the procedures below.
• Reset - Storage Memory or Reset - All (“To batch delete specific data (Reset)”, page 281)
• Initialize (“To initialize your ClassPad”, page 282)
After deleting add-in applications, you can use the procedure under “Installing an Add-in Application” (page 289) to
re-install them.

Chapter 1: Basics 16
Application Window
The following shows the basic configuration of a built-in application window.
Menu bar
Tool bar
Application window(s)
Soft keyboard
See page 18.
Status bar
See page 17.
Upper window
Lower window
Many applications split the display between an upper window and a lower window, each of which shows
different information. 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.
You can perform the operations below on an Application window.
To do this: Perform this operation:
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.
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 ragain.
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 effect on their active status. If the upper window is active when you tap S
for example, that window will remain active after it becomes the lower window.
Close the active windows While a dual window is on the display, tap Cat the top right corner of the
window to close the active window. This will cause the other (inactive) window to
fill the display.
Tip: When you tap the ricon 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 Sto bring the hidden window forward and make it the active window, and send the current active window to the
background.
uChanging the Display Orientation (Application Menu and Some Applications Only)
You can change the display orientation to horizontal while any one of the following is displayed: application
menu, or the Main, Graph & Table, Conics, or Physium application. Tap gto switch to horizontal (landscape)
display orientation. To return to vertical (portrait) display orientation, tap gagain.

Chapter 1: Basics 17
Using the OMenu
The Omenu appears at the top left of the window of each application, except for the System application. You
can access the Omenu by tapping mon the icon panel, or by tapping the menu bar’s Omenu.
The following describes all of the items that appear on the Omenu.
1Tapping [Variable Manager] starts up Variable Manager. See “Using
Variable Manager” (page 29) for details.
2Tapping [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, Differential Equation Graph, Statistics, etc.)
3Tapping a menu selection displays a dialog box for configuring the
corresponding setup settings. See “1-7 Configuring Application Format
Settings” for details.
4Tapping [Default Setup] returns all settings to their initial defaults
(except for the current folder setting). See “1-7 Configuring Application
Format Settings” for details.
5Tapping [Window] displays a list of all of the windows that can be accessed from the current application
(Statistics application in this example). Tapping a menu selection displays the corresponding window and
makes it active.
6Tap [Keyboard] to toggle display of the soft keyboard on or off.
7Tapping [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.
Interpreting Status Bar Information
The status bar appears along the bottom of the window of each application.
123
1Information about the currently running application
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 more details about the
current application information, see “1-7 Configuring Application Format Settings”.
2This indicator rotates while processing in progress.
appears here to indicate when an operation is paused.
3Battery level indicator (See “1-2 Power Supply”.)
Pausing and Terminating an Operation
Many of the built-in applications provide operations to pause and terminate (break) expression processing,
graphing, and other operations.
uTo pause an operation
Pressing the Kkey while an expression processing, graphing, or other operation is being performed
pauses the operation. appears on the right side of the status bar to indicate when an operation is paused.
Pressing Kagain resumes the operation.
1
2
4
5
6
7
3

Chapter 1: Basics 18
uTo terminate an operation
Pressing the ckey while an expression processing, graphing, or other
operation is being performed terminates the operation and displays a “Break”
dialog box like the one shown nearby.
Tap the [OK] button on the dialog box to exit the Break state.
1-4 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.
uTo display the soft keyboard
When the soft keyboard is not on the touch screen, press the
kkey, or tap the Omenu and then tap [Keyboard]. This
causes the soft keyboard to appear.
• The soft keyboard has a number of different key sets such
as [Math1], [abc], and [Catalog], which you can use to input
of functions and text. To select a key set, tap one of the tabs
along the left side of the soft keyboard.
• Pressing the kkey or tapping the Omenu, and then
[Keyboard] again hides the soft keyboard.
Soft keyboard
Soft Keyboard Key Sets
The soft keyboard has a variety of different key sets that support various data input needs. Each of the
available key sets is shown below.
[Math1], [Math2], [Math3], [Trig] (trigonometric), [Advance] key sets
These key sets include keys for inputting functions, operators, and symbols required for numerical formulas.
Math1 Math2 Math3

Chapter 1: Basics 19
Trig Advance
For details above the above key sets, see “Using Math, Trig, and Advance Key Sets” (page 23).
[Var] (variable) key set
This key set includes only keys for the input of single-character variables. For
more information, see “Using Single-character Variables” (page 25).
[abc] key set
Use this key set to input alphabetic characters. Tap one of the tabs along the
top of the keyboard (along the right when using horizontal display orientation)
to see additional characters, for example, tap [Math]. For more information, see
“Using the Alphabet Keyboard” (page 26).
[Catalog] key set
This key set 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 Keyboard” (page 27).
[Number] key set
This key set provides the same keys as those on the keypad. Use this key set
when you want to use only the touch screen for input or in place of the keypad
while using horizontal (landscape) display orientation.
Input Basics
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. See “Built-in Applications” (page 14).
• The soft keyboard is displayed. See “Using the Soft Keyboard” (page 18).

Chapter 1: Basics 20
kInputting a Calculation Expression
You can input a calculation expression just as it is written, and press the Ekey to execute it. The
ClassPad automatically determines the priority sequence of addition, subtraction, multiplication, division, and
parenthetical expressions.
Example: To simplify −2 + 3 − 4 + 10
uUsing the keypad keys
cz2+3-4+10E
If the line where you want to input the calculation expression already
contains input, be sure to press cto clear it.
uUsing the soft keyboard
Tap the keys of the [Number] keyboard to input the calculation expression.
c4-c+d-e+baw
As shown in the above Example, 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. See Chapter 2 for more information about inputting expressions.
Tip: In some cases, the input expression and output expression (result) may not fit in
the display area. If this happens, tap the left or right arrows that appear on the
display to scroll the expression screen and view the part that does not fit.
You can also change the display orientation to horizontal
(landscape) for easier-to-read display of long input formulas
and calculation results. See “Changing the Display
Orientation” (page 16).
kEditing Input
uTo delete a single character
Move the cursor so it is directly to the right of the character you want to delete, and then press K. Each
press of Kdeletes one character to the left of the cursor.
Example: To change the expression 369 × × 2 to 369 × 2
1. c369**2
2. dK
After you make all of the changes you want, press Eto calculate the result. To add more characters to the
calculation, press eto move the cursor to the end of the calculation, and input what you want.
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.
uTo insert new input into the middle of an existing calculation expression
Use dor eto move the cursor to the location where you want to insert new input, and then input what you
want.