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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/dorgrq.f | |
parent | 5fe0466a14e395641f4f8a300ecc9dcb8058081b (diff) | |
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Integrating Doxygen in comments
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-rw-r--r-- | SRC/dorgrq.f | 170 |
1 files changed, 118 insertions, 52 deletions
diff --git a/SRC/dorgrq.f b/SRC/dorgrq.f index dffbb756..27049af8 100644 --- a/SRC/dorgrq.f +++ b/SRC/dorgrq.f @@ -1,71 +1,137 @@ - SUBROUTINE DORGRQ( M, N, K, A, LDA, TAU, WORK, LWORK, INFO ) +*> \brief \b DORGRQ * -* -- 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 =========== * -* .. Scalar Arguments .. - INTEGER INFO, K, LDA, LWORK, M, N -* .. -* .. Array Arguments .. - DOUBLE PRECISION A( LDA, * ), TAU( * ), WORK( * ) -* .. +* Online html documentation available at +* http://www.netlib.org/lapack/explore-html/ +* +* Definition +* ========== * +* SUBROUTINE DORGRQ( M, N, K, A, LDA, TAU, WORK, LWORK, INFO ) +* +* .. Scalar Arguments .. +* INTEGER INFO, K, LDA, LWORK, M, N +* .. +* .. Array Arguments .. +* DOUBLE PRECISION A( LDA, * ), TAU( * ), WORK( * ) +* .. +* * Purpose * ======= * -* DORGRQ generates an M-by-N real matrix Q with orthonormal rows, -* which is defined as the last M rows of a product of K elementary -* reflectors of order N -* -* Q = H(1) H(2) . . . H(k) -* -* as returned by DGERQF. +*>\details \b Purpose: +*>\verbatim +*> +*> DORGRQ generates an M-by-N real matrix Q with orthonormal rows, +*> which is defined as the last M rows of a product of K elementary +*> reflectors of order N +*> +*> Q = H(1) H(2) . . . H(k) +*> +*> as returned by DGERQF. +*> +*>\endverbatim * * Arguments * ========= * -* M (input) INTEGER -* The number of rows of the matrix Q. M >= 0. -* -* N (input) INTEGER -* The number of columns of the matrix Q. N >= M. -* -* K (input) INTEGER -* The number of elementary reflectors whose product defines the -* matrix Q. M >= K >= 0. -* -* A (input/output) DOUBLE PRECISION array, dimension (LDA,N) -* On entry, the (m-k+i)-th row must contain the vector which -* defines the elementary reflector H(i), for i = 1,2,...,k, as -* returned by DGERQF in the last k rows of its array argument -* A. -* On exit, the M-by-N matrix Q. +*> \param[in] M +*> \verbatim +*> M is INTEGER +*> The number of rows of the matrix Q. M >= 0. +*> \endverbatim +*> +*> \param[in] N +*> \verbatim +*> N is INTEGER +*> The number of columns of the matrix Q. N >= M. +*> \endverbatim +*> +*> \param[in] K +*> \verbatim +*> K is INTEGER +*> The number of elementary reflectors whose product defines the +*> matrix Q. M >= K >= 0. +*> \endverbatim +*> +*> \param[in,out] A +*> \verbatim +*> A is DOUBLE PRECISION array, dimension (LDA,N) +*> On entry, the (m-k+i)-th row must contain the vector which +*> defines the elementary reflector H(i), for i = 1,2,...,k, as +*> returned by DGERQF in the last k rows of its array argument +*> A. +*> On exit, the M-by-N matrix Q. +*> \endverbatim +*> +*> \param[in] LDA +*> \verbatim +*> LDA is INTEGER +*> The first dimension of the array A. LDA >= max(1,M). +*> \endverbatim +*> +*> \param[in] TAU +*> \verbatim +*> TAU is DOUBLE PRECISION array, dimension (K) +*> TAU(i) must contain the scalar factor of the elementary +*> reflector H(i), as returned by DGERQF. +*> \endverbatim +*> +*> \param[out] WORK +*> \verbatim +*> WORK is DOUBLE PRECISION array, dimension (MAX(1,LWORK)) +*> On exit, if INFO = 0, WORK(1) returns the optimal LWORK. +*> \endverbatim +*> +*> \param[in] LWORK +*> \verbatim +*> LWORK is INTEGER +*> The dimension of the array WORK. LWORK >= max(1,M). +*> For optimum performance LWORK >= M*NB, where NB is the +*> optimal blocksize. +*> \endverbatim +*> \verbatim +*> If LWORK = -1, then a workspace query is assumed; the routine +*> only calculates the optimal size of the WORK array, returns +*> this value as the first entry of the WORK array, and no error +*> message related to LWORK is issued by XERBLA. +*> \endverbatim +*> +*> \param[out] INFO +*> \verbatim +*> INFO is INTEGER +*> = 0: successful exit +*> < 0: if INFO = -i, the i-th argument has an illegal value +*> \endverbatim +*> +* +* Authors +* ======= * -* LDA (input) INTEGER -* The first dimension of the array A. LDA >= max(1,M). +*> \author Univ. of Tennessee +*> \author Univ. of California Berkeley +*> \author Univ. of Colorado Denver +*> \author NAG Ltd. * -* TAU (input) DOUBLE PRECISION array, dimension (K) -* TAU(i) must contain the scalar factor of the elementary -* reflector H(i), as returned by DGERQF. +*> \date November 2011 * -* WORK (workspace/output) DOUBLE PRECISION array, dimension (MAX(1,LWORK)) -* On exit, if INFO = 0, WORK(1) returns the optimal LWORK. +*> \ingroup doubleOTHERcomputational * -* LWORK (input) INTEGER -* The dimension of the array WORK. LWORK >= max(1,M). -* For optimum performance LWORK >= M*NB, where NB is the -* optimal blocksize. +* ===================================================================== + SUBROUTINE DORGRQ( M, N, K, A, LDA, TAU, WORK, LWORK, INFO ) * -* If LWORK = -1, then a workspace query is assumed; the routine -* only calculates the optimal size of the WORK array, returns -* this value as the first entry of the WORK array, and no error -* message related to LWORK is issued by XERBLA. +* -- 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 has an illegal value +* .. Scalar Arguments .. + INTEGER INFO, K, LDA, LWORK, M, N +* .. +* .. Array Arguments .. + DOUBLE PRECISION A( LDA, * ), TAU( * ), WORK( * ) +* .. * * ===================================================================== * |