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Casio Calculator (FX991ES PLUS)

Regular price
Rs 5,200.00 LKR
Regular price
Sale price
Rs 5,200.00 LKR

  • Number of Functions : 417

  • Natural textbook display

    Natural textbook displayDisplay expression same as textbook.


    10 + 2 digits10-digit mantissa + 2-digit exponential display.

  • Dot matrix display

    Dot matrix displayHigh-resolution screen provides beautiful looking graphs every time.



Simple and easy to use

Optimal education tools realized through s design that emphasizes comfort in the hand, legibility, and usability through the pursuit of simplicity

Natural Textbook Display

Features Natural Textbook Display format for displaying equations and calculation result just as they appear in textbooks

Authentic quality

Excellent quality and authentication ensure confidence and peace of mind for use in educational settings

Main functions

  • Random integers

  • Fraction calculations

  • Combination and permutation

  • Statistics (List-based STAT data editor, standard deviation, regression analysis)

  • 9 variables

  • Table function

  • Comes with new slide-on hard case

  • Equation calculations

  • Integration/differential calculations

  • Matrix calculations

  • Vector calculations

  • Complex number calculations

  • CALC function

  • SOLVE function

  • Base-n calculation



Complex number calculations

Complex number calculations





Matrix operations

Matrix operations