CASIO

fx-570CW | fx-991CW

Before Using the Calculator

• ▶Read This First
  • About This Manual
  • Key Operations
  • Menu Operations
  • Key and Key
  • Examples
• ▶Initializing the Calculator
• ▶Calculator "Get Started" Screen
• ▶Precautions
  • Safety Precautions
  • Handling Precautions
• ▶Getting Started
  • Attaching and Removing the Front Cover
  • Turning Power On and Off
  • HOME Screen
  • Adjusting Display Contrast
  • Key Markings
  • Indicators
  • Using Menus

Calculator Apps and Menus

• ▶Calculator Apps
  • Selecting a Calculator App
  • Installed Calculator App List
• ▶Using the SETTINGS Menu
  • Changing Calculator Settings
  • Items and Available Setting Options
• ▶Using the CATALOG Menu
• ▶Using the TOOLS Menu

Inputting Expressions and Values

• ▶Basic Input Rules
• ▶Inputting an Expression Using Natural Textbook Format (MathI/MathO or MathI/DecimalO Only)
  • Undo Operations
  • Using Values and Expressions as Arguments
• ▶Overwrite Input Mode (LineI/LineO or LineI/DecimalO Only)

Basic Calculations

• ▶Arithmetic Calculations
• ▶Fraction Calculations
• ▶Powers, Power Roots, and Reciprocals
• ▶Pi, Natural Logarithm Base e
  • Pi
  • Natural Logarithm Base e
• ▶Calculation History and Replay
  • Calculation History
  • Replay
• ▶Using Memory Functions
  • Answer Memory (Ans)
  • Variables (A, B, C, D, E, F, x, y, z)
  • Clearing the Contents of All Memories

Changing Calculation Result Format

• ▶Using the FORMAT Menu
  • FORMAT Menu List
  • Conversion Sample Operation
• ▶Standard and Decimal Conversion
• ▶Prime Factorization
• ▶Rectangular and Polar Coordinate Conversion
• ▶Improper Fraction and Mixed Fraction Conversion
• ▶Engineering Notation
• ▶Sexagesimal Conversion (Degree, Minute, Second Calculations)
  • Converting a Decimal Value Calculation Result to a Sexagesimal Value
  • Inputting and Calculating with a Sexagesimal Value

Advanced Calculations

• ▶Function Analysis
  • Derivative(d/dx)
  • Integration(∫)
  • Summation(Σ)
  • Logarithm(logab), Logarithm(log)
  • Natural Logarithm
• ▶Probability
  • %
  • Factorial(!)
  • Permutation(P), Combination(C)
  • Random Number
  • Random Integer
• ▶Numeric Calculations
  • Absolute Value
  • Round Off
• ▶Angle Unit, Polar/Rectangular Coordinate, Sexagesimal
  • Degrees, Radians, Gradians
  • Rect to Polar, Polar to Rect
  • Degrees, Minutes, Seconds
• ▶Hyperbolic, Trigonometric
  • Hyperbolic Functions
  • Trigonometric Functions
• ▶Engineering Symbols
• ▶Scientific Constants
• ▶Unit Conversions
• ▶Others

Registering and Using Defining Equations for f(x) and g(x)

• ▶Registering and Using Defining Equations for f(x) and g(x)
  • Registering a Defining Equation
  • Performing a Calculation by Assigning a Value to the Registered Defining Equation
  • Registering a Composite Function
  • Data Retention

Using QR Code Functions

• ▶Using QR Code Functions
  • Displaying a QR Code
  • If You Experience Difficulty Scanning a QR Code

Using Calculator Apps

• ▶Statistical Calculations
  • General Procedure for Performing a Statistical Calculation
  • Inputting Data with Statistics Editor
  • Displaying Statistical Calculation Results
  • Using Statistical Calculation Screen
  • Statistical Calculation Formula
• ▶Distribution Calculations
  • General Procedure for Performing a Distribution Calculation
  • Parameter List
  • List Screen
  • Editing the List Screen Contents
  • Calculation Example
• ▶Using Spreadsheet
  • Inputting and Editing Cell Contents
  • Inputting a Constant and Formula into a Cell
  • Cell Relative and Absolute References
  • Using Spreadsheet App Special Commands
  • Batch Inputting the Same Formula or Constant into Multiple Cells
  • Spreadsheet App Setting Items
  • Auto Calc and Recalculate
• ▶Creating a Number Table
  • General Procedure for Creating a Number Table
  • Maximum Number of Rows in a Number Table According to Table Type
  • Defining Equation Registration
  • Editing Number Table Screen Data
  • f(x) and g(x) Update Timing
  • Data Retention
• ▶Equation Calculations
  • Simultaneous Linear Equations
  • High-order Equations from 2nd to 4th Degree
  • Using Solver
• ▶Inequality Calculations
  • General Procedure for Performing an Inequality Calculation
• ▶Complex Number Calculations
  • Inputting Complex Numbers
  • Complex App Calculation Examples
• ▶Base-n Calculations
  • Specifying the Number Mode of a Particular Input Value
  • Converting a Calculation Result to Another Type of Value
  • Logical and Negation Operations
• ▶Matrix Calculations
  • General Procedure for Performing a Matrix Calculation
  • Matrix Variable List Screen
  • Matrix Answer Memory (MatAns)
  • Matrix Calculation Examples
• ▶Vector Calculations
  • General Procedure for Performing a Vector Calculation
  • Vector Variable List Screen
  • Vector Answer Memory (VctAns)
  • Vector Calculation Examples
• ▶Ratio Calculations
  • General Procedure for Performing a Ratio Calculation
  • Calculation Example
• ▶Using Math Box
  • Dice Roll
  • Coin Toss

Technical Information

• ▶Errors
  • Displaying the Location of an Error
  • Error Messages
• ▶Before Assuming Malfunction of the Calculator...
• ▶Replacing the Battery
• ▶Calculation Priority Sequence
• ▶Calculation Ranges, Number of Digits, and Precision
  • Calculation Range and Precision
  • Function Calculation Input Ranges and Precision
• ▶Specifications

Frequently Asked Questions

• ▶Frequently Asked Questions