Scientific calculator

Answers exactly wherever the arithmetic allows — fractions stay fractions and roots that come out whole stay whole. It also shows how it read the expression before it answers, so a misplaced bracket is visible rather than silent.

Expression

Angles

Type an expression, or use the keys below. Spaces are ignored and 2(3+4) multiplies.

Worked out here

Press = or Enter to keep an answer. Nothing leaves the page.

Nothing kept yet. Try one of these: