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onion (version 1.2-7)
Octonions and Quaternions
Description
Quaternions and Octonions are four- and eight- dimensional
extensions of the complex numbers. They are normed division
algebras over the real numbers and find applications in spatial
rotations (quaternions) and string theory and relativity
(octonions). The quaternions are noncommutative and the octonions
nonassociative. See RKS Hankin 2006, Rnews Volume 6/2: 49-51, and
the package vignette, for more details.