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Casio fx-82CW User Manual
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Approximate Weight:
100 g (3.5 oz) including the battery
fx-85CW
Power Requirements:
Built-in solar cell; button battery LR44 × 1
Approximate Battery Life:
2
years
(based
on
one
hour
of
operation
per
day)
Operating
T
emperature:
0°C
to
40°C
(32°F
to
104°F)
Dimensions:
10.7
(H)
×
77
(W)
×
162
(D)
mm
7
/
16
”
(H)
×
3
1
/
16
”
(W)
×
6
3
/
8
”
(D)
Approximate
W
eight:
95
g
(3.4
oz)
including
the
battery
92
92
94
Table of Contents
Table of Contents
2
Before Using the Calculator
5
Read this First
5
About this Manual
5
Key Operations
5
Menu Operations
6
Key and Key
7
Examples
7
Initializing the Calculator
7
Calculator "Get Started" Screen
7
Precautions
8
Safety Precautions
8
Handling Precautions
10
Getting Started
10
Attaching and Removing the Front Cover
10
Turning Power on and off
12
HOME Screen
13
Adjusting Display Contrast
13
Key Markings
13
Indicators
14
Using Menus
14
Calculator Apps and Menus
17
Calculator Apps
17
Selecting a Calculator App
17
Installed Calculator App List
17
Using the SETTINGS Menu
18
Changing Calculator Settings
18
Items and Available Setting Options
19
Using the CATALOG Menu
23
Using the TOOLS Menu
24
Inputting Expressions and Values
25
Basic Input Rules
25
Inputting an Expression Using Natural Textbook Format (Mathi/Matho or Mathi/Decimalo Only)
26
Undo Operations
27
Using Values and Expressions as Arguments
27
Overwrite Input Mode (Linei/Lineo or Linei/Decimalo Only)
27
Basic Calculations
28
Arithmetic Calculations
28
Fraction Calculations
28
Powers, Power Roots, and Reciprocals
30
Pi, Natural Logarithm Base E
32
Natural Logarithm Base E
32
Calculation History and Replay
32
Calculation History
32
Replay
33
Using Memory Functions
33
Answer Memory (Ans)
33
Variables (A, B, C, D, E, F, X, Y, Z)
34
Clearing the Contents of All Memories
36
Changing Calculation Result Format
37
Using the FORMAT Menu
37
FORMAT Menu List
37
Conversion Sample Operation
38
Standard and Decimal Conversion
38
Prime Factorization
39
Improper Fraction and Mixed Fraction Conversion
40
Engineering Notation
41
Sexagesimal Conversion (Degree, Minute, Second Calculations)
42
Converting a Decimal Value Calculation Result to a Sexagesimal Value
42
Inputting and Calculating with a Sexagesimal Value
42
Advanced Calculations
44
Function Analysis
44
Logarithm(Logab), Logarithm(Log)
44
Natural Logarithm
45
Probability
45
Factorial(!)
46
Permutation(P), Combination(C)
46
Random Number
46
Random Integer
46
Numeric Calculations
47
Absolute Value
47
Round off
47
Angle Unit, Polar/Rectangular Coordinate, Sexagesimal
48
Degrees, Radians, Gradians
48
Rect to Polar, Polar to Rect
48
Degrees, Minutes, Seconds
49
Hyperbolic, Trigonometric
49
Hyperbolic Functions
49
Trigonometric Functions
50
Others
50
Registering and Using Defining Equations for F(X) and G(X)
52
Registering a Defining Equation
52
Performing a Calculation by Assigning a Value to the Registered Defining Equation
53
Registering a Composite Function
53
Data Retention
54
Using QR Code Functions
55
Displaying a QR Code
55
If You Experience Difficulty Scanning a QR Code
56
Using Calculator Apps
57
Statistical Calculations
57
General Procedure for Performing a Statistical Calculation
57
Inputting Data with Statistics Editor
58
Displaying Statistical Calculation Results
61
Using Statistical Calculation Screen
65
Statistical Calculation Formula
70
Creating a Number Table
73
General Procedure for Creating a Number Table
73
Maximum Number of Rows in a Number Table According to Table Type
74
Defining Equation Registration
75
Editing Number Table Screen Data
75
F(X) and G(X) Update Timing
76
Data Retention
76
Using Math Box
77
Dice Roll
77
Coin Toss
81
Technical Information
85
Errors
85
Displaying the Location of an Error
85
Error Messages
85
Before Assuming Malfunction of the Calculator
87
Replacing the Battery
87
Calculation Priority Sequence
89
Calculation Ranges, Number of Digits, and Precision
90
Calculation Range and Precision
90
Function Calculation Input Ranges and Precision
90
Specifications
92
Frequently Asked Questions
94
4
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Casio fx-82CW Specifications
General
Brand
Casio
Model
fx-82CW
Category
Calculator
Language
English
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