.TH ZLATZM 1 "November 2006" " LAPACK routine (version 3.1) " " LAPACK routine (version 3.1) " .SH NAME ZLATZM - i deprecated and has been replaced by routine ZUNMRZ .SH SYNOPSIS .TP 19 SUBROUTINE ZLATZM( SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK ) .TP 19 .ti +4 CHARACTER SIDE .TP 19 .ti +4 INTEGER INCV, LDC, M, N .TP 19 .ti +4 COMPLEX*16 TAU .TP 19 .ti +4 COMPLEX*16 C1( LDC, * ), C2( LDC, * ), V( * ), WORK( * ) .SH PURPOSE This routine is deprecated and has been replaced by routine ZUNMRZ.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\(aq, u = ( 1 ), .br ( v ) .br where v is an (m-1) vector if SIDE = \(aqL\(aq, or a (n-1) vector if SIDE = \(aqR\(aq. .br If SIDE equals \(aqL\(aq, let .br C = [ C1 ] 1 .br [ C2 ] m-1 .br n .br Then C is overwritten by P*C. .br If SIDE equals \(aqR\(aq, let .br C = [ C1, C2 ] m .br 1 n-1 .br Then C is overwritten by C*P. .br .SH ARGUMENTS .TP 8 SIDE (input) CHARACTER*1 = \(aqL\(aq: form P * C .br = \(aqR\(aq: form C * P .TP 8 M (input) INTEGER The number of rows of the matrix C. .TP 8 N (input) INTEGER The number of columns of the matrix C. .TP 8 V (input) COMPLEX*16 array, dimension (1 + (M-1)*abs(INCV)) if SIDE = \(aqL\(aq (1 + (N-1)*abs(INCV)) if SIDE = \(aqR\(aq The vector v in the representation of P. V is not used if TAU = 0. .TP 8 INCV (input) INTEGER The increment between elements of v. INCV <> 0 .TP 8 TAU (input) COMPLEX*16 The value tau in the representation of P. .TP 8 C1 (input/output) COMPLEX*16 array, dimension (LDC,N) if SIDE = \(aqL\(aq (M,1) if SIDE = \(aqR\(aq On entry, the n-vector C1 if SIDE = \(aqL\(aq, or the m-vector C1 if SIDE = \(aqR\(aq. On exit, the first row of P*C if SIDE = \(aqL\(aq, or the first column of C*P if SIDE = \(aqR\(aq. .TP 8 C2 (input/output) COMPLEX*16 array, dimension (LDC, N) if SIDE = \(aqL\(aq (LDC, N-1) if SIDE = \(aqR\(aq On entry, the (m - 1) x n matrix C2 if SIDE = \(aqL\(aq, or the m x (n - 1) matrix C2 if SIDE = \(aqR\(aq. On exit, rows 2:m of P*C if SIDE = \(aqL\(aq, or columns 2:m of C*P if SIDE = \(aqR\(aq. .TP 8 LDC (input) INTEGER The leading dimension of the arrays C1 and C2. LDC >= max(1,M). .TP 8 WORK (workspace) COMPLEX*16 array, dimension (N) if SIDE = \(aqL\(aq (M) if SIDE = \(aqR\(aq