Which Casio scientific calculators are best? You will probably need a Casio scientific calculator at some point in your educational journey to help you figure out formulas, equations, variables ...

These purpose-built devices allow you to perform a wide range of calculations quickly—powerful models can even tackle complicated calculus equations and graph visual representations of functions.

Alt1 is a free open source minimalist calculator application for Windows that can be entirely used from the keyboard. It lets you solve general expressions and supports all scientific operators.