Fourier sound
Beats with sound
Unforced Mass-spring-damper
Mass-spring-damper 4
Mass-spring-damper: driving through spring
Mass-spring-damper: driving through dashpot
Mass-spring-damper: P(D)x = f'
LRC Filters
Compare damping ratios
Gain and phase
Push me, pull you oscillators
Fourier approximation/Gibbs' phenomonon
Isoclines (Slight extension of the mathlets.org version.)
Vector fields (Slight extension of the mathlets.org version.)
Field Play -- beautiful animated vector fields app
Local version
anvaka.github.io/fieldplay/ Official version.)