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Casio FX-115W

Casio FX-115W
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fx-lOOW
fx-115W
fx-570W
fx-991W
User’s
Guide
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Casio FX-115W Specifications

General IconGeneral
BrandCasio
ModelFX-115W
CategoryCalculator
LanguageEnglish

Summary

Removing and Replacing the Calculators Cover

Safety Precautions

Batteries

Instructions and warnings for safe battery handling, storage, and disposal.

Disposing of the Calculator

Guidance on how to safely dispose of the calculator unit to prevent hazards.

Handling Precautions

Two-line Display

Key Layout (fx-570 W)

Key Layout (fx-991 W)

Before Starting Calculations...

Modes

Lists available calculation, angle unit, and display modes with their indicators.

Exponential Display Formats

Answer Memory

Explains how calculation results are stored automatically and can be recalled.

Memory Calculations

Independent Memory

Describes how to input, add, or subtract values directly into memory for cumulative totals.

Variables

Explains the use of nine variables (A-F, M, X, Y) for storing data and constants.

Fraction Calculations

Decimal-to-Fraction Conversion

Details the procedure for converting decimal numbers into their fractional representation.

Fraction-to-Decimal Conversion

Details the procedure for converting fractional numbers into their decimal representation.

Percentage Calculations

Scientific Function Calculations

TrigonometricInverse Trigonometric Functions

Explains calculations involving sine, cosine, tangent, and their inverse functions.

HyperbolicInverse Hyperbolic Functions

Details calculations for hyperbolic sine, cosine, and tangent functions.

Angle Unit Conversion

Common and Natural LogarithmsAntilogarithms

Square Roots, Cube Roots, Roots, Squares, Cubes, Reciprocals, Factorials, Random Numbers and

Covers various mathematical operations including roots, powers, factorials, and constants.

FIX, SCI, RND

ENG Calculations

Inputting ENG Calculation Symbols

How to use engineering notation symbols like kilo, mega, milli, etc.

Coordinate Conversion (Pol(x, y), Rec (r, ))

Permutation

Combination

Statistical Calculations

Standard Deviation (SD Mode)

Explains how to enter SD mode for statistical calculations and derive standard deviation.

Regression Calculations (REG Mode)

Complex Number Calculations (CMPLX Mode)

Absolute ValueArgument Calculation

Formula Memory

Metric Conversions (fx-570 Wfx-991 W)

Conversion Pair Table

Lists available metric conversion pairs based on ISO standard data for quick reference.

Scientific Constants (fx-570 Wfx-991 W)

Scientific Constant Table

Provides a list of 40 scientific constants with their numbers, names, and symbols for lookup.

Base-n Calculations

Integration Calculations

Technical Information

When you have a problem......

Steps to follow when calculation results are unexpected or errors occur, including mode checks.

Error Messages

Explains common error messages, their causes, and how to resolve them.

Order of Operations

Stacks

Power Supply (fx-991 Wfx-115 W)

Replacing the Battery

Step-by-step guide on how to replace the calculator's battery for continued operation.

Power Supply (fx-570 W)

Replacing the Battery

Step-by-step guide on how to replace the calculator's battery for continued operation.

Power Supply (fx-100 W)

Replacing the Battery

Step-by-step guide on how to replace the calculator's battery for continued operation.

Input Ranges

Specifications

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