Man Scilab

householder
Scilab Function

householder - Householder orthogonal reflexion matrix

Calling Sequence

u=householder(v [,w])

Parameters

Description

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) .

See Also

qr ,   givens ,  

Back