Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

computational graph

A diagram of the operations in a calculation, showing how each value depends on the ones before it.

Examples

The expression $z=(x+y)\cdot w$ is a computational graph of three nodes: an addition, then a multiplication.