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Casio fx-991ZA PLUS II User Manual

Casio fx-991ZA PLUS II
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Table of Contents
Before Using the Calculator.................................................... 4
About this Manual.................................................................................... 4
Initializing the Calculator..........................................................................4
Precautions..............................................................................................4
Safety Precautions..........................................................................................4
Handling Precautions......................................................................................5
Getting Started.........................................................................................5
Removing the Hard Case................................................................................5
Turning Power On and Off.............................................................................. 6
Adjusting Display Contrast..............................................................................6
Key Markings.................................................................................................. 6
Reading the Display........................................................................................7
Using Menus................................................................................................... 9
Calculation Modes and Calculator Setup.............................10
Calculation Mode................................................................................... 10
Configuring the Calculator Setup........................................................... 11
Initializing Calculator Settings....................................................................... 15
Inputting Expressions and Values........................................16
Basic Input Rules...................................................................................16
Inputting with Natural Display................................................................ 17
Form Calculation Range.................................................................... 17
Using Values and Expressions as Arguments (Natural Display only)....18
Overwrite Input Mode (Linear Display only)...........................................19
Correcting and Clearing an Expression................................................. 19
Basic Calculations..................................................................20
Toggling Calculation Results..................................................................20
Fraction Calculations............................................................................. 21
Percent Calculations..............................................................................22
Degree, Minute, Second (Sexagesimal) Calculations............................22
Multi-Statements....................................................................................23
Using Engineering Notation................................................................... 23
Remainder Calculations.........................................................................24
Prime Factorization................................................................................25
Calculation History and Replay..............................................................25
Calculation History........................................................................................ 25
Replay...........................................................................................................26
Using Memory Functions....................................................................... 26
Answer Memory (Ans)/Previous Answer Memory (PreAns)......................... 26
Variables (A, B, C, D, E, F, M, X, Y)..............................................................28
Independent Memory (M)..............................................................................28
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Table of Contents

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Casio fx-991ZA PLUS II Specifications

General IconGeneral
BrandCasio
Modelfx-991ZA PLUS II
CategoryCalculator
LanguageEnglish

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