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

⚡

Isoclines & Parameter Equilibria Sprint

Find an isocline's y-intercept, then track an equilibrium as a parameter moves it -- ninety seconds.

⏱️ 90s

▶ Log in to play

← Back to the arcade