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
📏

Harmonic Spacing Sprint

As the period grows, the Fourier series' harmonic spacing $\omega_0=2\pi/T$ shrinks toward the continuous spectrum -- find it fast.

⏱️ 45s
▶ Log in to play

← Back to the arcade