householder — Householder orthogonal reflexion matrix
u=householder(v [,w])
real or complex column vector
real or complex column vector with same size as v. Default value is eye(v)
real or complex column vector
given 2 column vectors v, w of same size, householder(v,w) returns a unitary
column vector u, such that (eye()-2*u*u')*v is proportional to w.
(eye()-2*u*u') is the orthogonal Householder reflexion matrix .
w default value is eye(v). In this case vector (eye()-2*u*u')*v is the
vector eye(v)*norm(v).