--- rpl/lapack/lapack/dlascl.f 2010/12/21 13:53:32 1.8 +++ rpl/lapack/lapack/dlascl.f 2011/11/21 20:42:58 1.9 @@ -1,9 +1,148 @@ +*> \brief \b DLASCL +* +* =========== DOCUMENTATION =========== +* +* Online html documentation available at +* http://www.netlib.org/lapack/explore-html/ +* +*> \htmlonly +*> Download DLASCL + dependencies +*> +*> [TGZ] +*> +*> [ZIP] +*> +*> [TXT] +*> \endhtmlonly +* +* Definition: +* =========== +* +* SUBROUTINE DLASCL( TYPE, KL, KU, CFROM, CTO, M, N, A, LDA, INFO ) +* +* .. Scalar Arguments .. +* CHARACTER TYPE +* INTEGER INFO, KL, KU, LDA, M, N +* DOUBLE PRECISION CFROM, CTO +* .. +* .. Array Arguments .. +* DOUBLE PRECISION A( LDA, * ) +* .. +* +* +*> \par Purpose: +* ============= +*> +*> \verbatim +*> +*> DLASCL multiplies the M by N real matrix A by the real scalar +*> CTO/CFROM. This is done without over/underflow as long as the final +*> result CTO*A(I,J)/CFROM does not over/underflow. TYPE specifies that +*> A may be full, upper triangular, lower triangular, upper Hessenberg, +*> or banded. +*> \endverbatim +* +* Arguments: +* ========== +* +*> \param[in] TYPE +*> \verbatim +*> TYPE is CHARACTER*1 +*> TYPE indices the storage type of the input matrix. +*> = 'G': A is a full matrix. +*> = 'L': A is a lower triangular matrix. +*> = 'U': A is an upper triangular matrix. +*> = 'H': A is an upper Hessenberg matrix. +*> = 'B': A is a symmetric band matrix with lower bandwidth KL +*> and upper bandwidth KU and with the only the lower +*> half stored. +*> = 'Q': A is a symmetric band matrix with lower bandwidth KL +*> and upper bandwidth KU and with the only the upper +*> half stored. +*> = 'Z': A is a band matrix with lower bandwidth KL and upper +*> bandwidth KU. See DGBTRF for storage details. +*> \endverbatim +*> +*> \param[in] KL +*> \verbatim +*> KL is INTEGER +*> The lower bandwidth of A. Referenced only if TYPE = 'B', +*> 'Q' or 'Z'. +*> \endverbatim +*> +*> \param[in] KU +*> \verbatim +*> KU is INTEGER +*> The upper bandwidth of A. Referenced only if TYPE = 'B', +*> 'Q' or 'Z'. +*> \endverbatim +*> +*> \param[in] CFROM +*> \verbatim +*> CFROM is DOUBLE PRECISION +*> \endverbatim +*> +*> \param[in] CTO +*> \verbatim +*> CTO is DOUBLE PRECISION +*> +*> The matrix A is multiplied by CTO/CFROM. A(I,J) is computed +*> without over/underflow if the final result CTO*A(I,J)/CFROM +*> can be represented without over/underflow. CFROM must be +*> nonzero. +*> \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,out] A +*> \verbatim +*> A is DOUBLE PRECISION array, dimension (LDA,N) +*> The matrix to be multiplied by CTO/CFROM. See TYPE for the +*> storage type. +*> \endverbatim +*> +*> \param[in] LDA +*> \verbatim +*> LDA is INTEGER +*> The leading dimension of the array A. LDA >= max(1,M). +*> \endverbatim +*> +*> \param[out] INFO +*> \verbatim +*> INFO is INTEGER +*> 0 - successful exit +*> <0 - if INFO = -i, the i-th argument had an illegal value. +*> \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 DLASCL( TYPE, KL, KU, CFROM, CTO, M, N, A, LDA, INFO ) * -* -- LAPACK auxiliary routine (version 3.3.0) -- +* -- 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 2010 +* November 2011 * * .. Scalar Arguments .. CHARACTER TYPE @@ -14,65 +153,6 @@ DOUBLE PRECISION A( LDA, * ) * .. * -* Purpose -* ======= -* -* DLASCL multiplies the M by N real matrix A by the real scalar -* CTO/CFROM. This is done without over/underflow as long as the final -* result CTO*A(I,J)/CFROM does not over/underflow. TYPE specifies that -* A may be full, upper triangular, lower triangular, upper Hessenberg, -* or banded. -* -* Arguments -* ========= -* -* TYPE (input) CHARACTER*1 -* TYPE indices the storage type of the input matrix. -* = 'G': A is a full matrix. -* = 'L': A is a lower triangular matrix. -* = 'U': A is an upper triangular matrix. -* = 'H': A is an upper Hessenberg matrix. -* = 'B': A is a symmetric band matrix with lower bandwidth KL -* and upper bandwidth KU and with the only the lower -* half stored. -* = 'Q': A is a symmetric band matrix with lower bandwidth KL -* and upper bandwidth KU and with the only the upper -* half stored. -* = 'Z': A is a band matrix with lower bandwidth KL and upper -* bandwidth KU. See DGBTRF for storage details. -* -* KL (input) INTEGER -* The lower bandwidth of A. Referenced only if TYPE = 'B', -* 'Q' or 'Z'. -* -* KU (input) INTEGER -* The upper bandwidth of A. Referenced only if TYPE = 'B', -* 'Q' or 'Z'. -* -* CFROM (input) DOUBLE PRECISION -* CTO (input) DOUBLE PRECISION -* The matrix A is multiplied by CTO/CFROM. A(I,J) is computed -* without over/underflow if the final result CTO*A(I,J)/CFROM -* can be represented without over/underflow. CFROM must be -* nonzero. -* -* 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. -* -* A (input/output) DOUBLE PRECISION array, dimension (LDA,N) -* The matrix to be multiplied by CTO/CFROM. See TYPE for the -* storage type. -* -* LDA (input) INTEGER -* The leading dimension of the array A. LDA >= max(1,M). -* -* INFO (output) INTEGER -* 0 - successful exit -* <0 - if INFO = -i, the i-th argument had an illegal value. -* * ===================================================================== * * .. Parameters ..