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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/chetri2x.f | |
parent | 5fe0466a14e395641f4f8a300ecc9dcb8058081b (diff) | |
download | lapack-e1d39294aee16fa6db9ba079b14442358217db71.tar.gz lapack-e1d39294aee16fa6db9ba079b14442358217db71.tar.bz2 lapack-e1d39294aee16fa6db9ba079b14442358217db71.zip |
Integrating Doxygen in comments
Diffstat (limited to 'SRC/chetri2x.f')
-rw-r--r-- | SRC/chetri2x.f | 159 |
1 files changed, 111 insertions, 48 deletions
diff --git a/SRC/chetri2x.f b/SRC/chetri2x.f index 809974f5..e3a3aac2 100644 --- a/SRC/chetri2x.f +++ b/SRC/chetri2x.f @@ -1,68 +1,131 @@ - SUBROUTINE CHETRI2X( UPLO, N, A, LDA, IPIV, WORK, NB, INFO ) +*> \brief \b CHETRI2X * -* -- LAPACK routine (version 3.3.1) -- -* -- LAPACK is a software package provided by Univ. of Tennessee, -- -* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- -* -- April 2011 -- +* =========== DOCUMENTATION =========== * -* -- Written by Julie Langou of the Univ. of TN -- +* Online html documentation available at +* http://www.netlib.org/lapack/explore-html/ * -* .. Scalar Arguments .. - CHARACTER UPLO - INTEGER INFO, LDA, N, NB -* .. -* .. Array Arguments .. - INTEGER IPIV( * ) - COMPLEX A( LDA, * ), WORK( N+NB+1,* ) -* .. +* Definition +* ========== * +* SUBROUTINE CHETRI2X( UPLO, N, A, LDA, IPIV, WORK, NB, INFO ) +* +* .. Scalar Arguments .. +* CHARACTER UPLO +* INTEGER INFO, LDA, N, NB +* .. +* .. Array Arguments .. +* INTEGER IPIV( * ) +* COMPLEX A( LDA, * ), WORK( N+NB+1,* ) +* .. +* * Purpose * ======= * -* CHETRI2X computes the inverse of a complex Hermitian indefinite matrix -* A using the factorization A = U*D*U**H or A = L*D*L**H computed by -* CHETRF. +*>\details \b Purpose: +*>\verbatim +*> +*> CHETRI2X computes the inverse of a complex Hermitian indefinite matrix +*> A using the factorization A = U*D*U**H or A = L*D*L**H computed by +*> CHETRF. +*> +*>\endverbatim * * Arguments * ========= * -* UPLO (input) CHARACTER*1 -* Specifies whether the details of the factorization are stored -* as an upper or lower triangular matrix. -* = 'U': Upper triangular, form is A = U*D*U**H; -* = 'L': Lower triangular, form is A = L*D*L**H. -* -* N (input) INTEGER -* The order of the matrix A. N >= 0. -* -* A (input/output) COMPLEX array, dimension (LDA,N) -* On entry, the NNB diagonal matrix D and the multipliers -* used to obtain the factor U or L as computed by CHETRF. +*> \param[in] UPLO +*> \verbatim +*> UPLO is CHARACTER*1 +*> Specifies whether the details of the factorization are stored +*> as an upper or lower triangular matrix. +*> = 'U': Upper triangular, form is A = U*D*U**H; +*> = 'L': Lower triangular, form is A = L*D*L**H. +*> \endverbatim +*> +*> \param[in] N +*> \verbatim +*> N is INTEGER +*> The order of the matrix A. N >= 0. +*> \endverbatim +*> +*> \param[in,out] A +*> \verbatim +*> A is COMPLEX array, dimension (LDA,N) +*> On entry, the NNB diagonal matrix D and the multipliers +*> used to obtain the factor U or L as computed by CHETRF. +*> \endverbatim +*> \verbatim +*> On exit, if INFO = 0, the (symmetric) inverse of the original +*> matrix. If UPLO = 'U', the upper triangular part of the +*> inverse is formed and the part of A below the diagonal is not +*> referenced; if UPLO = 'L' the lower triangular part of the +*> inverse is formed and the part of A above the diagonal is +*> not referenced. +*> \endverbatim +*> +*> \param[in] LDA +*> \verbatim +*> LDA is INTEGER +*> The leading dimension of the array A. LDA >= max(1,N). +*> \endverbatim +*> +*> \param[in] IPIV +*> \verbatim +*> IPIV is INTEGER array, dimension (N) +*> Details of the interchanges and the NNB structure of D +*> as determined by CHETRF. +*> \endverbatim +*> +*> \param[out] WORK +*> \verbatim +*> WORK is COMPLEX array, dimension (N+NNB+1,NNB+3) +*> \endverbatim +*> +*> \param[in] NB +*> \verbatim +*> NB is INTEGER +*> Block size +*> \endverbatim +*> +*> \param[out] INFO +*> \verbatim +*> INFO is INTEGER +*> = 0: successful exit +*> < 0: if INFO = -i, the i-th argument had an illegal value +*> > 0: if INFO = i, D(i,i) = 0; the matrix is singular and its +*> inverse could not be computed. +*> \endverbatim +*> +* +* Authors +* ======= * -* On exit, if INFO = 0, the (symmetric) inverse of the original -* matrix. If UPLO = 'U', the upper triangular part of the -* inverse is formed and the part of A below the diagonal is not -* referenced; if UPLO = 'L' the lower triangular part of the -* inverse is formed and the part of A above the diagonal is -* not referenced. +*> \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 * -* IPIV (input) INTEGER array, dimension (N) -* Details of the interchanges and the NNB structure of D -* as determined by CHETRF. +*> \ingroup complexHEcomputational * -* WORK (workspace) COMPLEX array, dimension (N+NNB+1,NNB+3) +* ===================================================================== + SUBROUTINE CHETRI2X( UPLO, N, A, LDA, IPIV, WORK, NB, INFO ) * -* NB (input) INTEGER -* Block size +* -- LAPACK computational routine (version 3.3.1) -- +* -- LAPACK is a software package provided by Univ. of Tennessee, -- +* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- +* November 2011 * -* INFO (output) INTEGER -* = 0: successful exit -* < 0: if INFO = -i, the i-th argument had an illegal value -* > 0: if INFO = i, D(i,i) = 0; the matrix is singular and its -* inverse could not be computed. +* .. Scalar Arguments .. + CHARACTER UPLO + INTEGER INFO, LDA, N, NB +* .. +* .. Array Arguments .. + INTEGER IPIV( * ) + COMPLEX A( LDA, * ), WORK( N+NB+1,* ) +* .. * * ===================================================================== * |