We’ve found the most reliable, usable calculators for pre-algebra, college entrance exams, and university-bound math students.

We’ve found the most reliable, usable calculators for pre-algebra, college entrance exams, and university-bound math students.

It laughs at splashes, dust and shocks. It eats military-spec drop tests for breakfast. It’s ideal for math in the great outdoors. Meet Casio’s new ruggedized scientific calculator, the fx ...

It is exactly what it sounds like: basically the numpad of a mechanical keyboard extracted and adapted into a standalone calculator with a segmented LCD. And RGB backlighting.

By comparison, the HP-15C was a pocket-sized scientific calculator with “built-in support for complex numbers, matrix math, numerical integration, and root solving”.