Casio Scientific Calculator fx-991EX performs advanced mathematical operations, like spreadsheet calculations, 4 × 4 matrix calculations,
The calulator has a higher resolution which increases the amount of information that can be displayed and improves usability.
It can calculate simultaneously equations with four unknowns and quartic equations, and advanced statistical distribution calculations.
Some of the mathematical function mentioned below
Perform integration calculations in advanced mathematics.
Perform differential calculations in advanced mathematics.
Perform engineering calculations that include symbols such as k, M, m, and n.