Casio fx-991ES PLUS Manual De Usuario

Casio

Contents

Important Information ............................................................. 2

Sample Operations .................................................................. 2

Initializing the Calculator ........................................................ 2

Safety Precautions .................................................................. 2

Handling Precautions .............................................................. 2

Removing the Hard Case ........................................................ 3

Turning Power On and Off ...................................................... 3

Adjusting Display Contrast .................................................... 3

Key Markings ........................................................................... 3

Reading the Display ................................................................ 4

Using Menus ............................................................................ 5

Specifying the Calculation Mode ........................................... 5

Configuring the Calculator Setup .......................................... 5

Inputting Expressions and Values ......................................... 7

Toggling Calculation Results ................................................. 9

Basic Calculations ................................................................ 10

Function Calculations ........................................................... 13

Complex Number Calculations (CMPLX) ............................ 18

Using CALC ............................................................................ 19

Using SOLVE .......................................................................... 20

Statistical Calculations (STAT) ............................................. 22

Calculations (BASE-N) ............................................. 26

Equation Calculations (EQN) ............................................... 28

Matrix Calculations (MATRIX) ............................................... 29

Creating a Number Table from a Function (TABLE) ........... 32

Vector Calculations (VECTOR) ............................................. 33

Scientific Constants .............................................................. 35

Metric Conversion ................................................................. 37

Calculation Ranges, Number of Digits,
and Precision ......................................................................... 38

Errors ...................................................................................... 40

Before Assuming Malfunction of the Calculator... ............. 41

Replacing the Battery............................................................ 42

Specifications ........................................................................ 42

Frequently Asked Questions ................................................ 43

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