Applications by Falstadcom

A demonstration of digital filters. You can test out many different filter types, filter mp3 files, and save the filtered output into an mp3 file.

A simulation of a ripple tank, or wave tank. Make waves with your finger, or view examples including such wave phenomena as interference, diffraction (single slit, double slit, etc.), refraction, resonance, and the Doppler effect. Create your own ex

A demonstration of Fourier series. Create your own function and have it expressed as a sum of sines and cosines. Play the function as an audio signal. Save and load experiments for future use.

Demonstrates electrostatics and static current distributions in two dimensions. View the electric field of charges and conductors. Save an experiment and reload it later.