In octonions the analogue of Hamilton's vector is localized to the extent of being confined to an indefinitely long axis parallel to itself, and is called a rotor; if p is a rotor then **wp** is parallel and equal to p, and, like Hamilton's vector, **wp** is not localized; **wp** is therefore called a vector, though it differs from Hamilton's vector in that the product of any two such vectors **wp** and coo- is zero because w 2 =o.

The product **wp**/g, by which the half-square of the angular velocity is multiplied, is called the moment of inertia of the revolving body.

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Such deities were styled 6 i f **wp**.oc, each having a separate part of the altar (Paus.