Casio fx-991ES PLUS - Manual (Page 2)

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
Base- n 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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