Casio FX-991CW calculator Pocket Scientific Black

ClassWiz CW Series is designed teaching and studying for today. Its brand-new approachable UI and various features encourage students’ math learning.

Enjoy math learning with ClassWiz CW series!

Intuitive, approachable new design

High-definition & 4-gradation display
With the 4-gradation display, the current input location is　displayed in a darker color.

Intuitive cursor operation
Simple cursor-based operations and a key layout that follows the natural flow of use.

Natural Textbook Display

List display function for thorough, speedy learning

Intuitive, easy-to-learn icon display

High-speed calculation
Fast calculation for smooth performance in class or during examinations.

Packed with features to encourage learning

Calculator Apps
Easily select a calculator app from the Home screen that is suitable for the type of calculation that you want to perform.

Spreadsheet
Useful for learning statistics, recursive formulas, and more.
Handles up to 5 columns x 45 rows (maximum of 170 data items).

Math Box
The following functions to support math learning: Dice Roll and Coin Toss for probability simulations.

Calculate
General calculations.

Statistics
Statistical and regression calculations.

Table
Generates a number table based on one or two functions.

Equation
Simultaneous equations, higher-order equations, and Solver (function to find the value of any variable contained in an input equation).

Online visualization service using QR codes
Easily generate QR codes of equations input into the calculator. Graphs and other graphics can be displayed on smartphones or tablets.

Variety of functions that are available in calculator apps to support students’ learning.

CATALOG
The CATALOG menu shows Store values to variables categories of commands, functions, and symbols according to the calculator app that you are currently using and the current status of the app (the displayed screen or current settings).

FUNCTION
You can store functions in both the f(x) and g(x) memory.

VARIABLE
You can store values to variables and use the variables in calculations.

Form factor	Pocket
Type	Scientific
Product colour	Black
Cover	Yes
Control type	Buttons
Symbolic notation	Fraction, Pi, Square root
Conversion between	Decimal, Fraction, Percent
Random number/integer generator	Yes
Negation key	Yes
Convert angles from degrees to	Gradian, Radian
Display type	Dot-matrix
Display tilting	No
Digits	12 digits
Power source	Battery
Battery type	LR44
Width	77 mm
Depth	107 mm
Height	162 mm
Weight	95 g