I have 2 rotations represented by quaternions, quaternions A and B respectively. how would I go about finding the rotation from one refence frame to another, say finding the rotation of quaternion A in quaternion B's reference frame. Do I find the inverse of the quaternion? or something else?
2026-04-04 19:51:32.1775332292
A question about quaternions and reference frames
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If you apply your rotations like this: $x\mapsto BxB^{-1}$, then I think you’re looking for $AB^{-1}$.
That’s the rotation you’d need to get to the result of $A$ beginning with the result of $B$.