Casio ClassPad II fx-CP400+E User Manual

Chapter 2: Main Application 69
u fMin [Action][Calculation][fMin/fMax][fMin], fMax [Action][Calculation][fMin/fMax][fMax]
Function: Returns the minimum (fMin) / the maximum (fMax) point in a specific range of a function.
Syntax: fMin(Exp[,variable] [ ) ]
fMin(Exp, variable, start value, end value[,
n] [ ) ]
fMax(Exp[,variable] [ ) ]
fMax(Exp, variable, start value, end value[,
n] [ ) ]
• “
x ” is the default when you omit “[,variable]”.
• Negative infinity and positive infinity are the default when the syntax fMin(Exp[,variable] [ ) ] or
fMax(Exp[,variable] [ ) ] is used.
• “ n ” is calculation precision, which you can specify as an integer in the range of 1 to 9. Using any value
outside this range causes an error.
• This command returns an approximate value when calculation precision is specified for “
n ”.
• This command returns a true value when nothing is specified for “
n ”. If the true value cannot be obtained,
however, this command returns an approximate value along with n = 4.
• Discontinuous points or sections that fluctuate widely can adversely affect precision or even cause an error.
• Inputting a larger number for “
n ” increases the precision of the calculation, but it also increases the amount
of time required to perform the calculation.
• The value you input for the end point of the interval must be greater than the value you input for the start
point. Otherwise an error occurs.
Example: To find the minimum point of
x
2
– 1 with respect to x
Example: To find the maximum point of – x
2
+ 1 with respect to x
u gcd [Action][Calculation][gcd/lcm][gcd]
Function: Returns the greatest common denominator of two expressions.
Syntax: gcd (Exp/List-1, Exp/List-2 [
) ]
Example: To obtain the greatest common denominator of
x + 1 and x
2
– 3 x – 4
u lcm [Action][Calculation][gcd/lcm][lcm]
Function: Returns the least common multiple of two expressions.
Syntax: lcm (Exp/List-1, Exp/List-2 [ ) ]
Example: To obtain the least common multiple of
x
2
– 1 and x
2
+ 2 x – 3
u denominator [Action][Calculation][fraction][denominator]
Function: Extracts the denominator of a fraction.
Syntax: denominator (Exp/List [ ) ]
Example: To extract the denominator of the fraction (
y – 2)/( x + 1)
u numerator [Action][Calculation][fraction][numerator]
Function: Extracts the numerator of a fraction.
Syntax: numerator (Exp/List [ ) ]
Example: To extract the numerator of the fraction (
y – 2)/( x + 1)

Casio ClassPad II fx-CP400+E Specifications

General

Model	fx-CP400+E
Category	Graphing Calculator
Display	Color LCD
Resolution	320 x 528 pixels
Color Depth	65536 colors
Backup Battery	CR2032
Connectivity	USB
Power	4 x AAA batteries
Software	ClassPad Manager
Display Size	4.8 inch
Languages	Multiple languages

Summary

Chapter 1: Basics

1-1 General Guide

Provides an overview of the ClassPad, application operations, input, data handling, and format settings.

1-3 Built-in Application Basic Operations

Explains basic information and operations common to all built-in applications.

1-4 Input

Details on using the keypad and the on-screen soft keyboard for data input.

1-7 Configuring Application Format Settings

Configures number format, angle units, and other settings for calculations and graphs.

1-8 When you keep having problems…

Troubleshooting steps for common issues like freezing or unexpected behavior.

Chapter 2: Main Application

2-1 Basic Calculations

Covers arithmetic operations, parentheses, and calculation priority sequences.

2-7 Using the Action Menu

Explains how to use transformation, expansion, and calculus functions via the Action menu.

2-9 Using the Main Application in Combination with Other Applications

Details on using other ClassPad applications with the Main application.

Chapter 3: Graph & Table Application

3-1 Storing Functions

Instructions on how to input and store functions in the Graph Editor window.

3-2 Using the Graph Window

Operations for the Graph window, including display settings, zooming, and panning.

3-3 Using Table & Graph

Covers generating number tables and summary tables from functions.

Chapter 4: Conics Application

4-1 Inputting an Equation

Steps to input conics equations using preset forms or manually.

4-2 Drawing a Conics Graph

Instructions on drawing parabolas, circles, ellipses, hyperbolas, and general conics.

Chapter 5: Differential Equation Graph Application

5-1 Graphing a Differential Equation

Explains how to graph first, second, and nth-order differential equations.

Chapter 6: Sequence Application

6-1 Recursive and Explicit Form of a Sequence

Covers working with explicit and recursive sequences.

Chapter 7: Statistics Application

7-1 Using Stat Editor

Covers creating and maintaining lists for statistical calculations and graphing.

7-3 Performing Basic Statistical Calculations

Details on calculating mean, standard deviation, quartiles, and median.

7-4 Performing Advanced Statistical Calculations

Covers performing tests, confidence intervals, and distribution calculations using wizards.

Chapter 8: Geometry Application

8-1 Drawing Figures

Instructions on drawing basic geometric figures like points, lines, circles, and polygons.

8-2 Editing Figures

Explains how to select, move, copy, and change properties of geometric figures.

8-3 Using the Measurement Box

Details on viewing, specifying, and constraining measurements of figures.

Chapter 9: Numeric Solver Application

Solving an Equation

How to use the Numeric Solver to find approximate solutions to equations.

Chapter 10: eActivity Application

10-1 Creating an eActivity

Basic steps for creating an eActivity, including inserting text, calculations, and data.

Chapter 11: Financial Application

11-1 Financial Application Basic Operations

Covers starting the application, navigating pages, and inputting values.

11-2 Performing Financial Calculations

Details on performing various financial calculations like interest, cash flow, and amortization.

11-3 Calculation Formulas

Provides the formulas used for various financial calculations.

Chapter 12: Program Application

12-1 Creating and Running Program

Step-by-step guide to creating, saving, and running programs.

12-2 Debugging a Program

Techniques for finding and fixing errors in programs.

12-3 User-defined Functions

How to create and use user-defined functions within the ClassPad.

Chapter 13: Spreadsheet Application

13-1 Inputting and Editing Cell Contents

Covers selecting cells, inputting data, formulas, and editing cell contents.

13-2 Graphing

Instructions on creating various types of graphs from spreadsheet data.

Chapter 14: 3D Graph Application

14-1 Inputting an Expression

Details on inputting expressions for 3D graphing using the editor.

14-2 Using the 3D Graph Window

Operations for the 3D Graph window, including view settings and rotation.

Chapter 15: Picture Plot Application

15-1 Using the Plot Function

Covers plotting points on images and overlaying graphs.

Chapter 16: Interactive Differential Calculus Application

16-1 Learning about Tangents Using the [Tangent] Tab

Demonstrates the concept of tangents and slopes using interactive graphs.

16-2 Deriving the Derivative Using the [Deriv] Tab

Explains how to derive and plot function derivatives using the DiffCalc tool.

Chapter 17: Physium Application

17-1 Periodic Table

Accesses and displays information from the built-in periodic table.

17-2 Fundamental Physical Constants

Provides access to fundamental physical constants and their details.

17-3 Precautions

Lists important precautions related to the Physium application's data.

Chapter 18: System Application

18-1 Managing Memory Usage

Information on managing ClassPad memory areas: Main, eActivity, and Storage.

18-2 Configuring System Settings

Guides on adjusting display, power, keyboard, and other system settings.

Chapter 19: Performing Data Communication

19-1 Data Communication Overview

Explains configuring communication parameters and connection modes.

19-2 Performing Data Communication between the ClassPad and a Personal Computer

Steps for transferring data between ClassPad and a computer via USB.

Appendix

Character Code Table

A table listing character codes for 2-byte and other characters.

System Variable Table

An alphabetic listing of system variables with descriptions and types.

Graph Types and Executable Functions

A reference for graph types and functions executable within applications.

Error and Warning Message Tables

Lists and explains various error and warning messages encountered.