Transforming quaternion between coordinate systems
134602
Convert quaternion to a different coordinate system
80895
half sine and half cosine quaternions
76651
Rotating ~90° using Two-Point Equidistant projection with Proj4
156218
Linear transformations map lines to lines
10699
Why are There No "Triernions" (3-dimensional analogue of complex numbers / quaternions)?
59598
The vectors are orthonormal
26698
Math beyond Quaternions
76559
Change of basis for a rank 3 Cartesian tensor
77587
Cross product: matrix transformation identity
82553
Need help with linear transformations (with projection and reflection)?
50277
Relationship between cosines of angles in 4 dimensions
130683
Quaternion group associativity
42493
Why is quaternion algebra 4d and not 3d?
150515
Construct an affine transformation of a plane given the images of three points
34489
Matrix representation of linear transformation
151926
Rotation and translation of a conic-section
49635
Which transformations are canonical?