Description
Casio fx-991MS-2 Scientific Calculator, 2nd Edition
The fx-991MS 2nd edition provides 401 functions in a non-programmable, non-graphing scientific calculator. Alongside fractions, trigonometry and statistics, it offers equation, complex number, matrix and vector calculations, numerical differentiation and integration, base-n calculations and scientific constants. A two-line display, replay, nine variables and a hard case support regular study. Solar and battery power.
Key features
- 401 functions; non-programmable and non-graphing
- Two-line S-V.P.A.M. display
- Equations, complex numbers, matrices and vectors
- Differentiation, integration and base-n calculations
- Solar and battery power; hard case
See also the Casio fx-95ES Plus scientific calculator.
Updated 28 October 2026
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