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/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/DEPRECATED/clatzm.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/DEPRECATED/clatzm.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/DEPRECATED/clatzm.f

SYNOPSIS

Functions/Subroutines


subroutine CLATZM (side, m, n, v, incv, tau, c1, c2, ldc, work)
CLATZM

Function/Subroutine Documentation

subroutine CLATZM (character side, integer m, integer n, complex, dimension( * ) v, integer incv, complex tau, complex, dimension( ldc, * ) c1, complex, dimension( ldc, * ) c2, integer ldc, complex, dimension( * ) work)

CLATZM

Purpose:

!>
!> This routine is deprecated and has been replaced by routine CUNMRZ.
!>
!> CLATZM applies a Householder matrix generated by CTZRQF to a matrix.
!>
!> Let P = I - tau*u*u**H,   u = ( 1 ),
!>                               ( v )
!> where v is an (m-1) vector if SIDE = 'L', or a (n-1) vector if
!> SIDE = 'R'.
!>
!> If SIDE equals 'L', let
!>        C = [ C1 ] 1
!>            [ C2 ] m-1
!>              n
!> Then C is overwritten by P*C.
!>
!> If SIDE equals 'R', let
!>        C = [ C1, C2 ] m
!>               1  n-1
!> Then C is overwritten by C*P.
!>

Parameters

SIDE 

!>          SIDE is CHARACTER*1
!>          = 'L': form P * C
!>          = 'R': form C * P
!>

M

!>          M is INTEGER
!>          The number of rows of the matrix C.
!>

N

!>          N is INTEGER
!>          The number of columns of the matrix C.
!>

V

!>          V is COMPLEX array, dimension
!>                  (1 + (M-1)*abs(INCV)) if SIDE = 'L'
!>                  (1 + (N-1)*abs(INCV)) if SIDE = 'R'
!>          The vector v in the representation of P. V is not used
!>          if TAU = 0.
!>

INCV

!>          INCV is INTEGER
!>          The increment between elements of v. INCV <> 0
!>

TAU

!>          TAU is COMPLEX
!>          The value tau in the representation of P.
!>

C1

!>          C1 is COMPLEX array, dimension
!>                         (LDC,N) if SIDE = 'L'
!>                         (M,1)   if SIDE = 'R'
!>          On entry, the n-vector C1 if SIDE = 'L', or the m-vector C1
!>          if SIDE = 'R'.
!>
!>          On exit, the first row of P*C if SIDE = 'L', or the first
!>          column of C*P if SIDE = 'R'.
!>

C2

!>          C2 is COMPLEX array, dimension
!>                         (LDC, N)   if SIDE = 'L'
!>                         (LDC, N-1) if SIDE = 'R'
!>          On entry, the (m - 1) x n matrix C2 if SIDE = 'L', or the
!>          m x (n - 1) matrix C2 if SIDE = 'R'.
!>
!>          On exit, rows 2:m of P*C if SIDE = 'L', or columns 2:m of C*P
!>          if SIDE = 'R'.
!>

LDC

!>          LDC is INTEGER
!>          The leading dimension of the arrays C1 and C2.
!>          LDC >= max(1,M).
!>

WORK

!>          WORK is COMPLEX array, dimension
!>                      (N) if SIDE = 'L'
!>                      (M) if SIDE = 'R'
!>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 151 of file clatzm.f.

Author

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Version 3.12.0 LAPACK