Scientific Calculation, In Your Own Language
The Casio fx-991AR X ClassWiz is the world's first standard scientific calculator with a full Arabic menu and guidance, bringing advanced calculation closer to Arabic-speaking students and professionals.

542 Functions for Advanced Math
Handle matrix calculations, vector calculations, complex numbers, integration and differential equations, base-n calculations, and statistical regression analysis — all within a comprehensive 542-function set.

Arabic-Language Interface
A high-resolution FSTN display with 12,096 dots — about four times the resolution of previous Casio models — minimizes abbreviated menu items, making instructions and on-screen guidance clear and easy to understand, even for beginners.

Built for Students and Professionals
List-based STAT data editor, standard deviation, table and dual table functions, 40 scientific constants, 40 metric conversions, and 9 variable memories cover everything from middle school math to advanced engineering coursework.

Reliable Dual Power
Solar and battery power keep the calculator ready for exams and everyday use, with auto power-off after 10 minutes of inactivity to conserve battery. Includes a protective hard case.