Interactive Math Simulations
Interactive math you can see and touch. Drag angles, morph curves, and watch sin, cos, and the rest come alive in your browser.
Simulations
Calculators
About Interactive Math Simulations
Maths you can move rather than only read. The unit circle explorer, quadratic explorer and probability simulator draw what the equation is doing and let you drag the inputs, which makes the relationship visible in a way a static answer is not.
Probability is the one that benefits most. Intuition about coin flips and dice is famously bad, and the fastest cure is watching a few thousand trials land: the shape settles down long before any individual run looks like the average.
Guides
How the applied math calculations work, and where they go wrong.