ispure.m

这是支持在MATLAB中进行四元数（哈密顿数）的工具箱

function tf = ispure(q)
% ISPURE   Tests whether a quaternion is pure.
% tf = ispure(q) returns 1 if q has no scalar part, 0 if not.
% Note that if q has a scalar part which is zero, ispure(q) returns 1.

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