Casio fx-991MS is a non-Programmable scientific calculator with 401 functions. The 2nd edition of the calculator comes in sleek and attractive design. Calculator has dot-matrix display for easy viewing and entering of long algebraic functions and equations. it can solve Trigonometrical, Statistical, Integral, Differential, Matrix, Vector calculations and many more.
Calculator is made with wear resistance printing and has drop resistant body. This is powered by Solar & Battery both: Solar powered when light is sufficient, battery powered when light is insufficient.