This is a simulation I made in Desmos to show standing waves. You can see the transverse standing wave and the two component wave trains. You can see a longitudinal wave, and you can see the relative pressure in the longitudinal wave. You can vary the harmonic, whether each end is fixed or open, the length of the medium, and the speed of the wave.
You can find this simulation at www.mrhosey.com/demos
It is simulation number 26.
or go directly to this link:
[Edited Simulation to show Displacement and Pressure Nodes]
https://www.desmos.com/calculator/r8g...
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