Intuitive and interactive operation makes it easy to use the features of ClassWiz.
By the use of icons, selection of the desired function is quick and easy.

Visual, interactive and textbook-based displays make operation easier for teaching the use of scientific calculators, so you can concentrate on teaching mathematics.

PLASTIC

Power Source Solar, Battery Brand Casio Colour Black Number of Batteries 1 LR44 batteries required. (included) Model Name FX-991EX Item Dimensions LxWxH 18.1 x 6.8 x 3.7 Centimeters Display Type LCD About this item Non-Programmable Scientific Calculator with 552 Functions 4-times better resolution than Casio 991ES Plus for easier viewing on long expressions Natural Textbook Display- Input and display fractions, powers, logarithms, roots, and other mathematical formulas and symbol just as they appear in textbooks Scientific Calculator with inbuilt QR Code function -- QR Code feature generate graphical visualization of given equation in your smart device. It also helps you to access calculator user manual on your smart phone. Faster than any previous Casio Non-Programmable Scientific Calculator Up to Four Degree Simultaneous and Polynomial Solver Numerical Integration, Differentiation, Statistics, Matrix, Vector Calculation Colour coded keypad for easy key differentiation for Secondary and tertiary functions. Dual Powered - Solar & Battery so that you can use for long time without the need of battery replacement Attractive and elegant look with metallic keys Recommended by Engineering & UG Maths Students