Scientific Calculator

Build an expression with the keypad or your keyboard and the result updates live below it; press = to commit the answer and keep calculating from it. Operator precedence and parentheses are respected, and unmatched brackets are auto-closed when the result is evaluated.

• Full function set — sin cos tan, their inverses via 2nd, hyperbolic sinh cosh tanh, ln, log₁₀, √, ∛, xʸ, x², x³, 1/x, x!, and EE scientific notation.
• Constants & random — insert π, e, or a fresh random number with Rand.
• Degrees or radians — toggle the angle unit; the current mode (DEG/RAD) is shown by the display.
• Memory — m+, m-, mr, and mc keep a running value; an M badge shows when memory is set.
• Keyboard ready — digits, + - * /, ^, ( ), !, %, Enter/=, Backspace, and Esc all work.

Everything runs locally in your browser — no expression is ever sent to a server.