Disponible en Español.

Path Integrals and Wavefunction for Harmonic Oscillator

Left: Classical trajectories (x(t) with time vertical in steps) plotted after every 200 changes in time steps. The Feynman path integral is over these trajectories.
Right The squared modulus of the developing ground-state wavefunction.

Ref.: the book Computational Physics by Landau and Páez