Casio fc-83GT CW

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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))

Main Page

Table of Contents2
Before Using the Calculator6
Read this First6
About this Manual6
Key Operations6
Menu Operations7
Key and Key8
Examples8
Initializing the Calculator8
Calculator "Get Started" Screen8
Precautions9
Safety Precautions9
Handling Precautions11
Getting Started11
Attaching and Removing the Front Cover11
Turning Power on and off13
HOME Screen14
Adjusting Display Contrast14
Key Markings14
Indicators15
Using Menus15
Calculator Apps and Menus18
Calculator Apps18
Selecting a Calculator App18
Installed Calculator App List18
Using the SETTINGS Menu19
Changing Calculator Settings20
Items and Available Setting Options20
Using the CATALOG Menu24
Using the TOOLS Menu25
Inputting Expressions and Values26
Basic Input Rules26
Inputting an Expression Using Natural Textbook Format (Mathi/Matho or Mathi/Decimalo Only)27
Undo Operations28
Using Values and Expressions as Arguments28
Overwrite Input Mode (Linei/Lineo or Linei/Decimalo Only)28
Basic Calculations29
Arithmetic Calculations29
Fraction Calculations29
Powers, Power Roots, and Reciprocals31
Pi, Natural Logarithm Base E33
Natural Logarithm Base E33
Calculation History and Replay33
Calculation History33
Replay34
Using Memory Functions34
Answer Memory (Ans)34
Variables (A, B, C, D, E, F, X, Y, Z)35
Clearing the Contents of All Memories37
Changing Calculation Result Format38
Using the FORMAT Menu38
FORMAT Menu List38
Conversion Sample Operation39
Standard and Decimal Conversion39
Prime Factorization40
Recurring Decimal Conversion (Recurring Decimal Calculations)41
Converting a Calculation Result to a Recurring Decimal Value41
Inputting a Recurring Decimal41
Recurring Decimal Calculation Example42
Improper Fraction and Mixed Fraction Conversion43
Engineering Notation43
Sexagesimal Conversion (Degree, Minute, Second Calculations)44
Converting a Decimal Value Calculation Result to a Sexagesimal Value44
Inputting and Calculating with a Sexagesimal Value45
Advanced Calculations46
Function Analysis46
Logarithm(Logab), Logarithm(Log)46
Natural Logarithm47
Probability47
Factorial(!)48
Permutation(P), Combination(C)48
Random Number48
Random Integer48
Numeric Calculations49
Gcd, Lcm49
Absolute Value49
Recurring Decimal50
Round off50
Angle Unit, Polar/Rectangular Coordinate, Sexagesimal50
Degrees, Radians, Gradians50
Rect to Polar, Polar to Rect51
Degrees, Minutes, Seconds51
Hyperbolic, Trigonometric52
Hyperbolic Functions52
Trigonometric Functions52
Others53
Registering and Using Defining Equations for F(X) and G(X)54
Registering a Defining Equation54
Performing a Calculation by Assigning a Value to the Registered Defining Equation55
Registering a Composite Function55
Data Retention56
Using QR Code Functions57
Displaying a QR Code57
If You Experience Difficulty Scanning a QR Code58
Using Calculator Apps59
Statistical Calculations59
General Procedure for Performing a Statistical Calculation59
Inputting Data with Statistics Editor60
Displaying Statistical Calculation Results63
Using Statistical Calculation Screen67
Statistical Calculation Formula72
Creating a Number Table75
General Procedure for Creating a Number Table75
Maximum Number of Rows in a Number Table According to Table Type76
Defining Equation Registration77
Editing Number Table Screen Data77
F(X) and G(X) Update Timing78
Data Retention78
Ratio Calculations79
General Procedure for Performing a Ratio Calculation79
Calculation Example80
Using Math Box80
Dice Roll80
Coin Toss84
Number Line87
Circle91
Technical Information96
Errors96
Displaying the Location of an Error96
Error Messages96
Before Assuming Malfunction of the Calculator98
Replacing the Battery99
Calculation Priority Sequence100
Calculation Ranges, Number of Digits, and Precision101
Calculation Range and Precision101
Function Calculation Input Ranges and Precision102
Specifications104
Frequently Asked Questions106

Casio fc-83GT CW - Page 73

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