The Perfect Math Learning Tool
The Casio fx-991CW ClassWiz brings an approachable, icon-based design to advanced scientific calculation, built for math classrooms and students tackling engineering, statistics, and higher-level coursework.

540+ Functions, Textbook-Style Display
Handle matrices, vectors, complex numbers, and higher-order equations with 540+ built-in functions, displayed in natural textbook notation on a high-resolution, 4-gradation LCD that keeps your cursor position clear as you write and edit expressions.

QR Code Visualization
Generate a scannable QR code directly on the calculator screen, then view graphs and spreadsheets on a smartphone or tablet through ClassPad.net — no app installation required.

Intuitive, Icon-Based Navigation
A convenient Math Catalog puts every function, plus 47 scientific constants and 40 measurement conversions, within easy reach, while circular convex buttons and glyphic labels reduce mis-keying.

Built-In Spreadsheet & Statistics Tools
Handle up to 5 columns by 45 rows (170 data items) for statistics and recursive formula learning, plus Dice Roll and Coin Toss functions for teaching probability.

Reliable Dual Power
Solar cells plus an LR44 backup battery keep the calculator running through long exam sessions without data loss.

Exam-Ready Design
Non-programmable with no text-storage memory or wireless communication, the fx-991CW is accepted for most international and local board examinations.