File: householder.cat

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scilab 2.6-4
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householder        Scilab Group        Scilab Function          householder
NAME
   householder - Householder orthogonal reflexion matrix
  
CALLING SEQUENCE
 u=householder(v [,w])
PARAMETERS
 v    : real or complex column vector
      
 w    : real or complex column vector with same size as v. Default value
      is eye(v)
      
 u    : real or complex column vector
      
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