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Casio Fx-991Ex Classwiz Non-Programmable Scientific Calculator


Power SourceSolar, Battery


ColourBlack and white

Number of Batteries1 LR44 batteries required. (

Model Name         FX-991EX

Item Dimensions LxWxH-18.1 x 6.8 x 3.7cm

Display Type         LCD


Special Features


-Equation Solver


-Base-n Calculations

-47 Scientific Constants

-40 Metric Conversions

-9 Variable Memories

Basic Functions

-Trigonometric and Inverse Trigonometric functions

-Exponential/Logarithmic Fraction Calculations


-Equation Calculations


-Table Function Matrix/Vector Calculations

-Complex Number Calculations

-Prime Factorization


-Permutation and Combination.


-Statistical Calculations


  • 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
  • 1 Year Warranty


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