is_versor

Quaternion.is_versor() → bool

Returns a bool value, where True if quaternion is a versor.

A versor is a quaternion of norm equal to one:

\[\begin{split}\left\{ \begin{array}{ll} \mathrm{True} & \: \|\mathbf{q}\| = 1 \\ \mathrm{False} & \: \mathrm{otherwise} \end{array} \right.\end{split}\]

Returns:

out – Boolean equal to True if \(\|\mathbf{q}\|=1\).

Return type:

bool