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author | julie <julielangou@users.noreply.github.com> | 2011-10-06 06:53:11 +0000 |
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committer | julie <julielangou@users.noreply.github.com> | 2011-10-06 06:53:11 +0000 |
commit | e1d39294aee16fa6db9ba079b14442358217db71 (patch) | |
tree | 30e5aa04c1f6596991fda5334f63dfb9b8027849 /SRC/sla_gerpvgrw.f | |
parent | 5fe0466a14e395641f4f8a300ecc9dcb8058081b (diff) |
Integrating Doxygen in comments
Diffstat (limited to 'SRC/sla_gerpvgrw.f')
-rw-r--r-- | SRC/sla_gerpvgrw.f | 121 |
1 files changed, 86 insertions, 35 deletions
diff --git a/SRC/sla_gerpvgrw.f b/SRC/sla_gerpvgrw.f index 3547caac..6d2b086d 100644 --- a/SRC/sla_gerpvgrw.f +++ b/SRC/sla_gerpvgrw.f @@ -1,54 +1,105 @@ - REAL FUNCTION SLA_GERPVGRW( N, NCOLS, A, LDA, AF, LDAF ) +*> \brief \b SLA_GERPVGRW * -* -- LAPACK routine (version 3.2.2) -- -* -- Contributed by James Demmel, Deaglan Halligan, Yozo Hida and -- -* -- Jason Riedy of Univ. of California Berkeley. -- -* -- June 2010 -- +* =========== DOCUMENTATION =========== * -* -- LAPACK is a software package provided by Univ. of Tennessee, -- -* -- Univ. of California Berkeley and NAG Ltd. -- +* Online html documentation available at +* http://www.netlib.org/lapack/explore-html/ * - IMPLICIT NONE -* .. -* .. Scalar Arguments .. - INTEGER N, NCOLS, LDA, LDAF -* .. -* .. Array Arguments .. - REAL A( LDA, * ), AF( LDAF, * ) -* .. +* Definition +* ========== * +* REAL FUNCTION SLA_GERPVGRW( N, NCOLS, A, LDA, AF, LDAF ) +* +* .. Scalar Arguments .. +* INTEGER N, NCOLS, LDA, LDAF +* .. +* .. Array Arguments .. +* REAL A( LDA, * ), AF( LDAF, * ) +* .. +* * Purpose * ======= * -* SLA_GERPVGRW computes the reciprocal pivot growth factor -* norm(A)/norm(U). The "max absolute element" norm is used. If this is -* much less than 1, the stability of the LU factorization of the -* (equilibrated) matrix A could be poor. This also means that the -* solution X, estimated condition numbers, and error bounds could be -* unreliable. +*>\details \b Purpose: +*>\verbatim +*> +*> SLA_GERPVGRW computes the reciprocal pivot growth factor +*> norm(A)/norm(U). The "max absolute element" norm is used. If this is +*> much less than 1, the stability of the LU factorization of the +*> (equilibrated) matrix A could be poor. This also means that the +*> solution X, estimated condition numbers, and error bounds could be +*> unreliable. +*> +*>\endverbatim * * Arguments * ========= * -* N (input) INTEGER -* The number of linear equations, i.e., the order of the -* matrix A. N >= 0. +*> \param[in] N +*> \verbatim +*> N is INTEGER +*> The number of linear equations, i.e., the order of the +*> matrix A. N >= 0. +*> \endverbatim +*> +*> \param[in] NCOLS +*> \verbatim +*> NCOLS is INTEGER +*> The number of columns of the matrix A. NCOLS >= 0. +*> \endverbatim +*> +*> \param[in] A +*> \verbatim +*> A is REAL array, dimension (LDA,N) +*> On entry, the N-by-N matrix A. +*> \endverbatim +*> +*> \param[in] LDA +*> \verbatim +*> LDA is INTEGER +*> The leading dimension of the array A. LDA >= max(1,N). +*> \endverbatim +*> +*> \param[in] AF +*> \verbatim +*> AF is REAL array, dimension (LDAF,N) +*> The factors L and U from the factorization +*> A = P*L*U as computed by SGETRF. +*> \endverbatim +*> +*> \param[in] LDAF +*> \verbatim +*> LDAF is INTEGER +*> The leading dimension of the array AF. LDAF >= max(1,N). +*> \endverbatim +*> * -* NCOLS (input) INTEGER -* The number of columns of the matrix A. NCOLS >= 0. +* Authors +* ======= * -* A (input) REAL array, dimension (LDA,N) -* On entry, the N-by-N matrix A. +*> \author Univ. of Tennessee +*> \author Univ. of California Berkeley +*> \author Univ. of Colorado Denver +*> \author NAG Ltd. * -* LDA (input) INTEGER -* The leading dimension of the array A. LDA >= max(1,N). +*> \date November 2011 * -* AF (input) REAL array, dimension (LDAF,N) -* The factors L and U from the factorization -* A = P*L*U as computed by SGETRF. +*> \ingroup realGEcomputational * -* LDAF (input) INTEGER -* The leading dimension of the array AF. LDAF >= max(1,N). +* ===================================================================== + REAL FUNCTION SLA_GERPVGRW( N, NCOLS, A, LDA, AF, LDAF ) +* +* -- LAPACK computational routine (version 3.2.2) -- +* -- LAPACK is a software package provided by Univ. of Tennessee, -- +* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- +* November 2011 +* +* .. Scalar Arguments .. + INTEGER N, NCOLS, LDA, LDAF +* .. +* .. Array Arguments .. + REAL A( LDA, * ), AF( LDAF, * ) +* .. * * ===================================================================== * |