Is there a generalized formula or formulas be it that quaternion multiplication is not commutative, to solve for the equations:
Qa * X = Qb; solve for X
X * Qa = Qb; solve for X
where Qa is an arbitrary quaternion with Qb as a target quaternion?
Be it that quaternion multiplication and rotation matrix multiplication are supposed to be isomorphic as I've read, is there an equivalent equation for 3x3 rotation matrices?