Given two rotation matrices A and B (rotated from the same initial frame), how can I find the rotation matrix that represents the change in rotation from A to B? (I actually want to find the Euler axis and angle that represents that change in rotation.)
My one idea seems too involved: Convert A and B into their equivalent Euler angles, find the difference in Euler angles, convert the difference back into a rotation matrix, and then convert the new rotation matrix into Euler axis and angle.
Thanks for the help!