An atlas of mathematics

Films you can step into

Each film tells one idea in a few minutes. Nothing in it was recorded: every frame is drawn in your browser as it plays. Pause anywhere, and the same picture opens as a playground you can work with.

Films

Group theoryInvariantA short film about symmetrySeven short movements on group theory, from the six symmetries of a triangle to the Monster. Nothing here was recorded: every frame is computed in your browser as it plays, drawn for your screen at your display’s rate.VersionsEnglish4:00 · Full film日本語1:09 · IV so far中文1:03 · IV so farWatch →

Playgrounds

From InvariantWalking a groupWhich walks bring you back to where you started?Open →

How it is made

Every language is written in that language, not translated: the lines follow what each moment has to say, and the picture waits for the voice. The same code renders the film here, the videos on each platform, and the playgrounds.