01 / Plot
Up to six at once
Each function in its own colour, redrawn as you type, with clear messages for typing mistakes.
Free tool
Type a function of x, like x^2 - 3, sin(x) or 2^x, and it is drawn on a grid at once. Add up to six functions in different colours, drag to move around, scroll or pinch to zoom, and hover to read values. The page marks where each curve crosses zero and where curves meet, and lists them. Save the graph as a PNG for homework or slides.
Use x, + - * / ^, brackets, sqrt, sin, cos, tan, ln, log, abs, pi and e. 2x and 3(x+1) work.
Drawn in your browser. Your functions are kept in this browser and never sent anywhere.
Explore a function
01 / Plot
Each function in its own colour, redrawn as you type, with clear messages for typing mistakes.
02 / Explore
Drag the grid, scroll or pinch to zoom, and hover to read x and y on every curve.
03 / Find
Points where a curve crosses zero, or two curves meet, are marked and listed.
Questions
Type it after y =, using x. For example x^2 - 2x + 1.
Yes, up to six. Press Add a function.
The crossings in view are marked and listed under the graph.
Yes. Set Angles to Degrees for sin, cos and tan.
Yes, as a PNG.