octonion
Noun
Meaning
octonion (plural octonions)
(mathematics) An 8-dimensional nonassociative extension of a quaternion with a real part and 7 imaginary parts (each a real multiple of a distinct square root of −1).
Anagrams
Examples
If the ∗ is forced to be equal to the identity then the multiplication ceases to be associative, but the ∗ may be removed from the multiplication table resulting in an octonion multiplication table.
Instead there are many different cross products, each one dependent on the choice of octonion product.
The irreducible integral octonions are exactly those of prime norm, and every integral octonion can be written as a product of irreducible octonions.