Talk:Conversion between quaternions and Euler angles
Appearance
Are the "Euler angles" in this article really Tait-Bryan_angles?
Canonical form of quaternion
The equation presented for conversion from Euler angles to Quaternion has several discontinuities that are not necessarily present in the Quaternions themselves.
For instance, for the Euler angles (0,0,-180) and (0,0,180), the conversion would produce the quaternions (0,0,0,1) and (0,0,0,-1). These refer to the same attitude, but linear interpolation or slerp between them would not work well. Which is the canonical form?