Name: Casio fx-82CW
Brand: Casio
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Regression Calculation Formula

Linear Regression (y = a + bx)

Quadratic Regression (y = a + bx + cx

)

Logarithmic Regression (y = a + b･ln(x))

Table of Contents2
Before Using the Calculator5
Read this First5
About this Manual5
Key Operations5
Menu Operations6
Key and Key7
Examples7
Initializing the Calculator7
Calculator "Get Started" Screen7
Precautions8
Safety Precautions8
Handling Precautions10
Getting Started10
Attaching and Removing the Front Cover10
Turning Power on and off12
HOME Screen13
Adjusting Display Contrast13
Key Markings13
Indicators14
Using Menus14
Calculator Apps and Menus17
Calculator Apps17
Selecting a Calculator App17
Installed Calculator App List17
Using the SETTINGS Menu18
Changing Calculator Settings18
Items and Available Setting Options19
Using the CATALOG Menu23
Using the TOOLS Menu24
Inputting Expressions and Values25
Basic Input Rules25
Inputting an Expression Using Natural Textbook Format (Mathi/Matho or Mathi/Decimalo Only)26
Undo Operations27
Using Values and Expressions as Arguments27
Overwrite Input Mode (Linei/Lineo or Linei/Decimalo Only)27
Basic Calculations28
Arithmetic Calculations28
Fraction Calculations28
Powers, Power Roots, and Reciprocals30
Pi, Natural Logarithm Base E32
Natural Logarithm Base E32
Calculation History and Replay32
Calculation History32
Replay33
Using Memory Functions33
Answer Memory (Ans)33
Variables (A, B, C, D, E, F, X, Y, Z)34
Clearing the Contents of All Memories36
Changing Calculation Result Format37
Using the FORMAT Menu37
FORMAT Menu List37
Conversion Sample Operation38
Standard and Decimal Conversion38
Prime Factorization39
Improper Fraction and Mixed Fraction Conversion40
Engineering Notation41
Sexagesimal Conversion (Degree, Minute, Second Calculations)42
Converting a Decimal Value Calculation Result to a Sexagesimal Value42
Inputting and Calculating with a Sexagesimal Value42
Advanced Calculations44
Function Analysis44
Logarithm(Logab), Logarithm(Log)44
Natural Logarithm45
Probability45
Factorial(!)46
Permutation(P), Combination(C)46
Random Number46
Random Integer46
Numeric Calculations47
Absolute Value47
Round off47
Angle Unit, Polar/Rectangular Coordinate, Sexagesimal48
Degrees, Radians, Gradians48
Rect to Polar, Polar to Rect48
Degrees, Minutes, Seconds49
Hyperbolic, Trigonometric49
Hyperbolic Functions49
Trigonometric Functions50
Others50
Registering and Using Defining Equations for F(X) and G(X)52
Registering a Defining Equation52
Performing a Calculation by Assigning a Value to the Registered Defining Equation53
Registering a Composite Function53
Data Retention54
Using QR Code Functions55
Displaying a QR Code55
If You Experience Difficulty Scanning a QR Code56
Using Calculator Apps57
Statistical Calculations57
General Procedure for Performing a Statistical Calculation57
Inputting Data with Statistics Editor58
Displaying Statistical Calculation Results61
Using Statistical Calculation Screen65
Statistical Calculation Formula70
Creating a Number Table73
General Procedure for Creating a Number Table73
Maximum Number of Rows in a Number Table According to Table Type74
Defining Equation Registration75
Editing Number Table Screen Data75
F(X) and G(X) Update Timing76
Data Retention76
Using Math Box77
Dice Roll77
Coin Toss81
Technical Information85
Errors85
Displaying the Location of an Error85
Error Messages85
Before Assuming Malfunction of the Calculator87
Replacing the Battery87
Calculation Priority Sequence89
Calculation Ranges, Number of Digits, and Precision90
Calculation Range and Precision90
Function Calculation Input Ranges and Precision90
Specifications92
Frequently Asked Questions94

Casio fx-82CW User Manual

Table of Contents

Questions and Answers:

Casio fx-82CW Specifications

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Brand	Casio
Model	fx-82CW
Category	Calculator
Language	English