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I study animation, and I wanted to make a script where I can automate pendulums in my scene with some kind of realistic physics, rather than animate them manually.

So 'right' I think, 'I need to go study some physics and maths' - but it wasnt as easy as I hoped, Ive hit a wall, and it is the nonlinear integration of the second order D.E:

y" = -(g/L)sin(y)

So from my limited understanding, this equation is non-linear due to the absence of y', and because y is a function of sin.

Its seems the only hints Ive been able to get is that integrating it is not a particually easy thing to do, with references only giving me parameters to enter into mathematics software for computation.The problem is, I essentially need to write my own software(script), and without understanding what is going on, I cant.

If I could get some better idea of what is involved, then I can decide if its going to be worth my while spending more time trying to do this now, or if I need a diploma in advanced mathematics first :)

thanks

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# Need some help with nonlinear integration

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