Polar graphing calculator

Guide

Your equations

Angle & range

Angle mode

θ start θ end

Use θ or t as the variable, e.g. 1 + cos(θ). Spirals need a wider range (e.g. 0 to 6π).

Examples

Type a polar equation like r = 1 + cos(θ). Drag to pan, scroll to zoom, hover to trace (r, θ).