DLATZM(3f)

NAME
DLATZM - i deprecated and has been replaced by routine DORMRZ

SYNOPSIS

SUBROUTINE DLATZM(
    SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK )

CHARACTER
    SIDE

INTEGER
    INCV, LDC, M, N

DOUBLE
    PRECISION TAU

DOUBLE
    PRECISION C1( LDC, * ), C2( LDC, * ), V( * ), WORK( * )

PURPOSE
This routine is deprecated and has been replaced by routine DORMRZ. DLATZM applies a Householder matrix generated by DTZRQF to a matrix. Let P = I - tau*u*u', 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.

ARGUMENTS

SIDE    (input) CHARACTER*1
    = 'L': form P * C
    = 'R': form C * P

M       (input) INTEGER
    The number of rows of the matrix C.

N       (input) INTEGER
    The number of columns of the matrix C.

V       (input) DOUBLE PRECISION 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    (input) INTEGER
    The increment between elements of v. INCV <> 0

TAU     (input) DOUBLE PRECISION
    The value tau in the representation of P.

C1      (input/output) DOUBLE PRECISION 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      (input/output) DOUBLE PRECISION 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     (input) INTEGER
    The leading dimension of the arrays C1 and C2. LDC >= (1,M).

WORK    (workspace) DOUBLE PRECISION array, dimension
    (N) if SIDE = 'L' (M) if SIDE = 'R'