Describes perfect lossless waves on the surface of a string, or on a water surface.
JavaScript toy solvers:
- https://jtiscione.github.io/webassembly-wave/index.html circular domain, create waves with mouse click
- https://dionyziz.com/graphics/wave-experiment/ with useless 3D WebGL visualization :-), waves with mouse click. Solving itself done on CPU, not GPU.