I'm looking to derive the equation for torsion for a space curve I think I use and of course Then But I can't see where the comes in...
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But I can't see where the comes in... From .
First I need Now . How do I find t' and n' ?
Well... First of all, you can reparametrize for arc length, so that , , and eventually , etc...
What if the aim is to find the torsion for any parametrisation?
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