PHYSICS PROGRAMMERS: Spring pendulum simulation

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Interesting! The path they trace out appear to be a sort of distorted lissajou curve (more obvious in the spring with lower stiffness), I would love to see a simulation where this is more obvious!

mixnik
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did you use mx'' = mg + kx(x0/|x| - 1) where x is position, k is stiffness, and x0 is the equilibrium length of the spring?

icodestuff
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Interesting! Is this system chaotic (like a double pendulum) or not (like a regular pendulum)? ....this was literally the first question that came to my mind when seeing the thumbnail.

MusicEngineeer
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how did you do that? Which library or language?

newtao
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