See the maths move
Graph any function and drag its coefficients to watch the curve change, or pull a triangle's corners and see every angle, length and area update live. Built for Grades 6–12 — explore, don't just read.
← Back to Maths courseFunction Grapher
Type a function of x, then drag the sliders for any letters (a, b, c…) and watch the graph respond instantly. Plot several at once, zoom and pan.
Functions (y = …)
^ for powers, * for multiply (or just 2x). Functions: sin cos tan sqrt abs ln log exp. Constants: pi, e. Drag the graph to pan, scroll to zoom.Geometry Playground
Drag the corners A, B, C of the triangle. The side lengths, the three angles, the area and perimeter all update live — and notice the angles always add up to 180°.
More shapes (circles, polygons, the Pythagoras proof, 3D solids) are coming to this playground.
Algebra & Calculus Sandbox
Type any expression and let the engine do the algebra: simplify, expand, factor, differentiate, integrate, solve an equation, or take a limit. The answer is shown in proper maths notation, with steps you can read off.
Try one:
^, multiply * (or 2x). Functions sin cos tan ln log sqrt exp. For Solve, type the left side (it solves = 0) or include an = sign. Change the variable box for letters other than x.Matrix Calculator
Enter a matrix and watch it row-reduce step by step, or get the determinant, inverse, rank and transpose. Everything is computed in exact fractions — you’ll see 1/3, never 0.3333. Type whole numbers, fractions like 3/2, or decimals.
Load an example:
Probability Tree
Build a multi-stage experiment and watch the tree draw itself. Each branch can have its own probability (so conditional cases like drawing without replacement work), the tool multiplies along every path, and it checks that each set of branches adds up to 1. Type probabilities as fractions like 3/5 or decimals like 0.6.
Define the tree
3D Geometry
Pick a solid, drag to rotate it in 3D, and change its dimensions with the sliders. The surface area and volume update live, each shown with the formula behind it.
Dimensions