3 ms·
If you have some knowledge of group theory the 'why' is pretty straight forward. Quaternions are the generators of SU(2) which is a double covering of SO(3). T
by noone_important 2y ago
If you have some knowledge of group theory the 'why' is pretty straight forward.
Quaternions are the generators of SU(2) which is a double covering of SO(3). The latter describes rotations in 3 dimensions. Thus you can express any rotation in 3d with quaternions.