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  • Followup: RE: Derivative of rotation matrix

    Thanks for those links to those Mark Ioffe pages, that was actually close to what I was looking for when I found your site. I'll have to read over them when I can. Hmm, I'd never thought about the time-varying difference between [d R(t) / dt] and [~w] for constant angular velocities. But what you say would be right [~w] would be constant and [d R(t) / dt] would still vary if R(t) changes...

    2006-10-06 18:16:07 UTC in mjbWorld

  • Derivative of rotation matrix

    This page http://www.euclideanspace.com/maths/differential/matrixcalculus/ directed me here. It's hard to tell what exactly the problem is in your first computations, since it's possible that you define things with some different convention than I am used to. But as far as I can tell you are doing things with normal conventions. So I'll try to explain what the right way is as I understand...

    2006-10-04 18:33:31 UTC in mjbWorld

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