In mathematics, the quaternion number system extends the complex numbers into four dimensions. They were first described by Irish mathematician William Rowan Hamilton in 1843. They are often used in computer graphics to compute 3-dimensional rotations.
References[change | change source]
- "On Quaternions; or on a new System of Imaginaries in Algebra". Letter to John T. Graves. 17 October 1843.
- Rozenfelʹd, Boris Abramovich (1988). The history of non-euclidean geometry: Evolution of the concept of a geometric space. Springer. p. 385. ISBN 9780387964584.
Other websites[change | change source]
- Media related to Quaternions at Wikimedia Commons
- Paulson, Lawrence C. Quaternions (Formal proof development in Isabelle/HOL, Archive of Formal Proofs)
- Quaternions – Visualisation