The wave equation
The famous second order linear partial differential equation, known as the wave equation, describes the behaviour of all sorts of waves, including acoustic and electromagnetical:
The visualization was an exercise in solving differential equations numerically. It shows the interaction of waves generated from two point-like sources.
This equation is tiny, elegant, yet powerful: its simple form hides both the wondrous phenomena of resounding strings of an instrument, and the play of light on the surface of a pond.
(I didn’t know how to make the waves not to reflect at the edges of grid. But then I figured out: a shore. Waves are dissipated as the sea floor raises gently - the damping is progressively higher on the edges. Is there a better way to simulate an infinite grid?)
