Casio ClassWiz fx-991EX

QUICK START GUIDE
fx-991EX
http://edu.casio.com/
The fx-991EX “ClassWiz” features a high-resolution
display, making it easier to view formulas and symbols.
This remarkable screen can display between 2-6 times
as many characters as other scientic calculators, yet
still runs on solar power.
Use the W key to turn the calculator on, and press
qC(OFF) to power the unit down.
The icon-based menu, accessible via the p key,
allows easy navigation of features using the arrow keys
and the number keys or the Q shortcuts.
The o key can be used like Backspace in a word
processor to delete the character(s) left of the cursor.
The symbols printed on the keys use Natural Textbook
Display™ notation, similar to that found in textbooks.
This makes input of expressions fast and easy.
The n key toggles your calculation results between
Standard (exact) and Decimal forms.

Casio ClassWiz fx-991EX Specifications

General

Number of Functions	552
Power Source	Solar + Battery
Battery Type	LR44
Weight	90 g
Display Digits	10 + 2 digits
Natural Textbook Display	Yes
Icon Menu	Yes
QR Code Function	Yes
Complex Number Calculation	Yes
Base-n Calculation	Yes
Equation Calculation	Yes
Matrix Calculation	Yes
Vector Calculation	Yes
Statistical Calculation	Yes
Differentiation	Yes
Integration	Yes
Distribution Calculation	Yes
Solve Function	Yes
Metric Conversion	Yes
Constants	Yes
Variable Memory	9
Repeat Function	Yes
Answer Memory	Yes
Undo Function	Yes
Digit Separator	Yes
Spreadsheet Function	Yes
Hard Case	Yes
Dimensions	11.1 x 77 x 165.5 mm
Languages	English

Summary

fx-991 EX Quick Start Guide

Calculator Display and Notation

High-resolution display shows more characters; uses Natural Textbook Display notation for input.

Basic Operation and Navigation

Learn to power on/off, use the icon-based menu, and utilize the DEL key for editing.

Calculation Result Display

The SD key toggles calculation results between Standard (exact) and Decimal forms.