Calculators

Plot Cartesian, parametric, and polar expressions with an interactive canvas graph, analyze roots, derivatives and integrals, animate variables with sliders, and ask the AI assistant.

Enter any function f(x) and a point a to estimate the derivative f′(a) with the central difference method — the same routine behind the graph tangent lines.

Compute ∫[a,b] f(x) dx numerically with adaptive Simpson’s rule, with an explanation of signed area and when integrals vanish.

Find every real root of f(x) on an interval you choose, using sign-change scanning refined by Brent’s method — verified, never guessed.