Quaternion square roots
( go to the article → https://www.johndcook.com/blog/2021/01/06/quaternion-square-roots/ )
If y is a quaternion, how many solutions does x² = y have? That is, does every quaternion have a square root, and if so, how many square roots does it have? A quaternion can have more than two roots. There is a example right in the definition of quaternions: i² = j² = k² […] The post Quaternion square roots first appeared on John D. Cook.
Jan. 6, 2021, 3:54 p.m.