--- rpl/lapack/lapack/dlaset.f 2010/12/21 13:53:33 1.7 +++ rpl/lapack/lapack/dlaset.f 2011/11/21 20:42:59 1.8 @@ -1,9 +1,119 @@ +*> \brief \b DLASET +* +* =========== DOCUMENTATION =========== +* +* Online html documentation available at +* http://www.netlib.org/lapack/explore-html/ +* +*> \htmlonly +*> Download DLASET + dependencies +*> +*> [TGZ] +*> +*> [ZIP] +*> +*> [TXT] +*> \endhtmlonly +* +* Definition: +* =========== +* +* SUBROUTINE DLASET( UPLO, M, N, ALPHA, BETA, A, LDA ) +* +* .. Scalar Arguments .. +* CHARACTER UPLO +* INTEGER LDA, M, N +* DOUBLE PRECISION ALPHA, BETA +* .. +* .. Array Arguments .. +* DOUBLE PRECISION A( LDA, * ) +* .. +* +* +*> \par Purpose: +* ============= +*> +*> \verbatim +*> +*> DLASET initializes an m-by-n matrix A to BETA on the diagonal and +*> ALPHA on the offdiagonals. +*> \endverbatim +* +* Arguments: +* ========== +* +*> \param[in] UPLO +*> \verbatim +*> UPLO is CHARACTER*1 +*> Specifies the part of the matrix A to be set. +*> = 'U': Upper triangular part is set; the strictly lower +*> triangular part of A is not changed. +*> = 'L': Lower triangular part is set; the strictly upper +*> triangular part of A is not changed. +*> Otherwise: All of the matrix A is set. +*> \endverbatim +*> +*> \param[in] M +*> \verbatim +*> M is INTEGER +*> The number of rows of the matrix A. M >= 0. +*> \endverbatim +*> +*> \param[in] N +*> \verbatim +*> N is INTEGER +*> The number of columns of the matrix A. N >= 0. +*> \endverbatim +*> +*> \param[in] ALPHA +*> \verbatim +*> ALPHA is DOUBLE PRECISION +*> The constant to which the offdiagonal elements are to be set. +*> \endverbatim +*> +*> \param[in] BETA +*> \verbatim +*> BETA is DOUBLE PRECISION +*> The constant to which the diagonal elements are to be set. +*> \endverbatim +*> +*> \param[in,out] A +*> \verbatim +*> A is DOUBLE PRECISION array, dimension (LDA,N) +*> On exit, the leading m-by-n submatrix of A is set as follows: +*> +*> if UPLO = 'U', A(i,j) = ALPHA, 1<=i<=j-1, 1<=j<=n, +*> if UPLO = 'L', A(i,j) = ALPHA, j+1<=i<=m, 1<=j<=n, +*> otherwise, A(i,j) = ALPHA, 1<=i<=m, 1<=j<=n, i.ne.j, +*> +*> and, for all UPLO, A(i,i) = BETA, 1<=i<=min(m,n). +*> \endverbatim +*> +*> \param[in] LDA +*> \verbatim +*> LDA is INTEGER +*> The leading dimension of the array A. LDA >= 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 auxOTHERauxiliary +* +* ===================================================================== SUBROUTINE DLASET( UPLO, M, N, ALPHA, BETA, A, LDA ) * -* -- LAPACK auxiliary routine (version 3.2) -- +* -- LAPACK auxiliary routine (version 3.4.0) -- * -- LAPACK is a software package provided by Univ. of Tennessee, -- * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- -* November 2006 +* November 2011 * * .. Scalar Arguments .. CHARACTER UPLO @@ -14,47 +124,6 @@ DOUBLE PRECISION A( LDA, * ) * .. * -* Purpose -* ======= -* -* DLASET initializes an m-by-n matrix A to BETA on the diagonal and -* ALPHA on the offdiagonals. -* -* Arguments -* ========= -* -* UPLO (input) CHARACTER*1 -* Specifies the part of the matrix A to be set. -* = 'U': Upper triangular part is set; the strictly lower -* triangular part of A is not changed. -* = 'L': Lower triangular part is set; the strictly upper -* triangular part of A is not changed. -* Otherwise: All of the matrix A is set. -* -* M (input) INTEGER -* The number of rows of the matrix A. M >= 0. -* -* N (input) INTEGER -* The number of columns of the matrix A. N >= 0. -* -* ALPHA (input) DOUBLE PRECISION -* The constant to which the offdiagonal elements are to be set. -* -* BETA (input) DOUBLE PRECISION -* The constant to which the diagonal elements are to be set. -* -* A (input/output) DOUBLE PRECISION array, dimension (LDA,N) -* On exit, the leading m-by-n submatrix of A is set as follows: -* -* if UPLO = 'U', A(i,j) = ALPHA, 1<=i<=j-1, 1<=j<=n, -* if UPLO = 'L', A(i,j) = ALPHA, j+1<=i<=m, 1<=j<=n, -* otherwise, A(i,j) = ALPHA, 1<=i<=m, 1<=j<=n, i.ne.j, -* -* and, for all UPLO, A(i,i) = BETA, 1<=i<=min(m,n). -* -* LDA (input) INTEGER -* The leading dimension of the array A. LDA >= max(1,M). -* * ===================================================================== * * .. Local Scalars ..