In mathematics, the icosians are a specific set of Hamiltonian quaternions with the same symmetry as the 600-cell. The term can be used to refer to two related, but distinct, concepts: The icosian group: a multiplicative group of 120 quaternions, positioned at the vertices of a 600-cell of unit radius.
In mathematics, the icosians are a specific set of Hamiltonian quaternions with the same symmetry as the 600-cell. The term can be used to refer to two related, but distinct, concepts: The icosian group: a multiplicative group of 120 quaternions, positioned at the vertices of a 600-cell of unit radius.
Source: Wikipedia "Icosian" · CC BY-SA 4.0
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