householder_matrix.m

这是支持在MATLAB中进行四元数（哈密顿数）的工具箱

function [h] = householder_matrix(a, v)
% h = householder_matrix(a, v) returns the Householder matrix that
% will zero all elements of a except those corresponding to (any)
% non-zero elements of v. If v has zero norm, an identity matrix is
% returned. The matrix returned is either a left or right Householder
% matrix dependent on whether the input parameters are column or row
% vectors respectively.

% Copyright