--- rpl/lapack/blas/zgerc.f 2011/07/22 07:38:02 1.7 +++ rpl/lapack/blas/zgerc.f 2011/11/21 20:37:09 1.8 @@ -1,91 +1,156 @@ - SUBROUTINE ZGERC(M,N,ALPHA,X,INCX,Y,INCY,A,LDA) -* .. Scalar Arguments .. - DOUBLE COMPLEX ALPHA - INTEGER INCX,INCY,LDA,M,N -* .. -* .. Array Arguments .. - DOUBLE COMPLEX A(LDA,*),X(*),Y(*) -* .. +*> \brief \b ZGERC * -* Purpose -* ======= +* =========== DOCUMENTATION =========== * -* ZGERC performs the rank 1 operation +* Online html documentation available at +* http://www.netlib.org/lapack/explore-html/ * -* A := alpha*x*y**H + A, +* Definition: +* =========== +* +* SUBROUTINE ZGERC(M,N,ALPHA,X,INCX,Y,INCY,A,LDA) +* +* .. Scalar Arguments .. +* COMPLEX*16 ALPHA +* INTEGER INCX,INCY,LDA,M,N +* .. +* .. Array Arguments .. +* COMPLEX*16 A(LDA,*),X(*),Y(*) +* .. +* +* +*> \par Purpose: +* ============= +*> +*> \verbatim +*> +*> ZGERC performs the rank 1 operation +*> +*> A := alpha*x*y**H + A, +*> +*> where alpha is a scalar, x is an m element vector, y is an n element +*> vector and A is an m by n matrix. +*> \endverbatim * -* where alpha is a scalar, x is an m element vector, y is an n element -* vector and A is an m by n matrix. -* -* Arguments +* Arguments: * ========== * -* M - INTEGER. -* On entry, M specifies the number of rows of the matrix A. -* M must be at least zero. -* Unchanged on exit. -* -* N - INTEGER. -* On entry, N specifies the number of columns of the matrix A. -* N must be at least zero. -* Unchanged on exit. -* -* ALPHA - COMPLEX*16 . -* On entry, ALPHA specifies the scalar alpha. -* Unchanged on exit. -* -* X - COMPLEX*16 array of dimension at least -* ( 1 + ( m - 1 )*abs( INCX ) ). -* Before entry, the incremented array X must contain the m -* element vector x. -* Unchanged on exit. -* -* INCX - INTEGER. -* On entry, INCX specifies the increment for the elements of -* X. INCX must not be zero. -* Unchanged on exit. -* -* Y - COMPLEX*16 array of dimension at least -* ( 1 + ( n - 1 )*abs( INCY ) ). -* Before entry, the incremented array Y must contain the n -* element vector y. -* Unchanged on exit. -* -* INCY - INTEGER. -* On entry, INCY specifies the increment for the elements of -* Y. INCY must not be zero. -* Unchanged on exit. -* -* A - COMPLEX*16 array of DIMENSION ( LDA, n ). -* Before entry, the leading m by n part of the array A must -* contain the matrix of coefficients. On exit, A is -* overwritten by the updated matrix. -* -* LDA - INTEGER. -* On entry, LDA specifies the first dimension of A as declared -* in the calling (sub) program. LDA must be at least -* max( 1, m ). -* Unchanged on exit. -* -* Further Details -* =============== -* -* Level 2 Blas routine. -* -* -- Written on 22-October-1986. -* Jack Dongarra, Argonne National Lab. -* Jeremy Du Croz, Nag Central Office. -* Sven Hammarling, Nag Central Office. -* Richard Hanson, Sandia National Labs. +*> \param[in] M +*> \verbatim +*> M is INTEGER +*> On entry, M specifies the number of rows of the matrix A. +*> M must be at least zero. +*> \endverbatim +*> +*> \param[in] N +*> \verbatim +*> N is INTEGER +*> On entry, N specifies the number of columns of the matrix A. +*> N must be at least zero. +*> \endverbatim +*> +*> \param[in] ALPHA +*> \verbatim +*> ALPHA is COMPLEX*16 +*> On entry, ALPHA specifies the scalar alpha. +*> \endverbatim +*> +*> \param[in] X +*> \verbatim +*> X is COMPLEX*16 array of dimension at least +*> ( 1 + ( m - 1 )*abs( INCX ) ). +*> Before entry, the incremented array X must contain the m +*> element vector x. +*> \endverbatim +*> +*> \param[in] INCX +*> \verbatim +*> INCX is INTEGER +*> On entry, INCX specifies the increment for the elements of +*> X. INCX must not be zero. +*> \endverbatim +*> +*> \param[in] Y +*> \verbatim +*> Y is COMPLEX*16 array of dimension at least +*> ( 1 + ( n - 1 )*abs( INCY ) ). +*> Before entry, the incremented array Y must contain the n +*> element vector y. +*> \endverbatim +*> +*> \param[in] INCY +*> \verbatim +*> INCY is INTEGER +*> On entry, INCY specifies the increment for the elements of +*> Y. INCY must not be zero. +*> \endverbatim +*> +*> \param[in,out] A +*> \verbatim +*> A is COMPLEX*16 array of DIMENSION ( LDA, n ). +*> Before entry, the leading m by n part of the array A must +*> contain the matrix of coefficients. On exit, A is +*> overwritten by the updated matrix. +*> \endverbatim +*> +*> \param[in] LDA +*> \verbatim +*> LDA is INTEGER +*> On entry, LDA specifies the first dimension of A as declared +*> in the calling (sub) program. LDA must be at least +*> max( 1, m ). +*> \endverbatim +* +* Authors: +* ======== +* +*> \author Univ. of Tennessee +*> \author Univ. of California Berkeley +*> \author Univ. of Colorado Denver +*> \author NAG Ltd. +* +*> \date November 2011 +* +*> \ingroup complex16_blas_level2 +* +*> \par Further Details: +* ===================== +*> +*> \verbatim +*> +*> Level 2 Blas routine. +*> +*> -- Written on 22-October-1986. +*> Jack Dongarra, Argonne National Lab. +*> Jeremy Du Croz, Nag Central Office. +*> Sven Hammarling, Nag Central Office. +*> Richard Hanson, Sandia National Labs. +*> \endverbatim +*> +* ===================================================================== + SUBROUTINE ZGERC(M,N,ALPHA,X,INCX,Y,INCY,A,LDA) +* +* -- Reference BLAS level2 routine (version 3.4.0) -- +* -- Reference BLAS is a software package provided by Univ. of Tennessee, -- +* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- +* November 2011 +* +* .. Scalar Arguments .. + COMPLEX*16 ALPHA + INTEGER INCX,INCY,LDA,M,N +* .. +* .. Array Arguments .. + COMPLEX*16 A(LDA,*),X(*),Y(*) +* .. * * ===================================================================== * * .. Parameters .. - DOUBLE COMPLEX ZERO + COMPLEX*16 ZERO PARAMETER (ZERO= (0.0D+0,0.0D+0)) * .. * .. Local Scalars .. - DOUBLE COMPLEX TEMP + COMPLEX*16 TEMP INTEGER I,INFO,IX,J,JY,KX * .. * .. External Subroutines ..