5 ms·
As a concrete example, feedback controllers for attitude control (ie, pointing something) are imo easier to develop in quarternions than with 3x3 matrices. For
by pinkmuffinere 3y ago
As a concrete example, feedback controllers for attitude control (ie, pointing something) are imo easier to develop in quarternions than with 3x3 matrices. For one, the quaternion formulation isn’t over-constrained by the extra parameters.
This is essentially because quaternions are a remarkably good representation of rotations.
- TeMPOraL 3y agoRelated, 3D math is done with 4x4 matrices, not 3x3 as the "3D" would make someone think, because you need that extra dimension to represent translations in matrix form, and once you do that, you can compose arbitrary transforms through multiplication.