SRC/DEPRECATED/zlatzm.f(3)

NAME
SRC/DEPRECATED/zlatzm.f

SYNOPSIS

  Functions/Subroutines
subroutine zlatzm (side, m, n, v, incv, tau, c1, c2, ldc, work)
ZLATZM

Function/Subroutine Documentation

  subroutine zlatzm (character side, integer m, integer n, complex*16, dimension( * ) v, integer incv, complex*16 tau, complex*16, dimension( ldc, * ) c1, complex*16, dimension( ldc, * ) c2, integer ldc, complex*16, dimension( * ) work)

ZLATZM

Purpose:

    !>
    !> This routine is deprecated and has been replaced by routine ZUNMRZ.
    !>
    !> ZLATZM applies a Householder matrix generated by ZTZRQF 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*16 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*16
    !>          The value tau in the representation of P.
    !>

    C1

    !>          C1 is COMPLEX*16 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*16 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*16 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 zlatzm.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.