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ja0335

Matrix calculation

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I know that the computedRotationMatix is calculated multiplying PreRotation * Rotation * PostRotation;

computedRotationMatix = PreRotation * Rotation * PostRotation;

But currently i only knows the computedRotationMatix , PreRotation , PostRotation;

How can i find the Rotation matrix?

Thanks for your time

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Provided that PreRotation and PostRotation are invertible,

Rotation = PreRotation[sup]-1[/sup] * computedRotationMatrix * PostRotation[sup]-1[/sup]

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And provided they are rotations, you can transpose them instead of finding their inverses, since the results should match.

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