A scientific calculator usually has special buttons for parentheses, trigonometric functions, exponents, inverses and pi -- among other things. A graphing calculator does even more.

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 ...

If you thought “Scientific” mode was fun, you haven’t seen anything yet—coming soon, to Windows 10, is a full-fledged graphing calculator.