Skip to content
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

partial-differential-equations

Domain of dependence, range of influence, and finite propagation speed

taught

Identify which initial data determines a wave solution's value at a given point, and which future points a given piece of initial data can affect.

Taught in

Requires