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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 /BLAS/SRC/drotmg.f | |
parent | 5fe0466a14e395641f4f8a300ecc9dcb8058081b (diff) | |
download | lapack-e1d39294aee16fa6db9ba079b14442358217db71.tar.gz lapack-e1d39294aee16fa6db9ba079b14442358217db71.tar.bz2 lapack-e1d39294aee16fa6db9ba079b14442358217db71.zip |
Integrating Doxygen in comments
Diffstat (limited to 'BLAS/SRC/drotmg.f')
-rw-r--r-- | BLAS/SRC/drotmg.f | 126 |
1 files changed, 92 insertions, 34 deletions
diff --git a/BLAS/SRC/drotmg.f b/BLAS/SRC/drotmg.f index 108c7949..694d37aa 100644 --- a/BLAS/SRC/drotmg.f +++ b/BLAS/SRC/drotmg.f @@ -1,50 +1,108 @@ - SUBROUTINE DROTMG(DD1,DD2,DX1,DY1,DPARAM) -* .. Scalar Arguments .. - DOUBLE PRECISION DD1,DD2,DX1,DY1 -* .. -* .. Array Arguments .. - DOUBLE PRECISION DPARAM(5) -* .. -* -* Purpose -* ======= +*> \brief \b DROTMG * -* CONSTRUCT THE MODIFIED GIVENS TRANSFORMATION MATRIX H WHICH ZEROS -* THE SECOND COMPONENT OF THE 2-VECTOR (DSQRT(DD1)*DX1,DSQRT(DD2)* -* DY2)**T. -* WITH DPARAM(1)=DFLAG, H HAS ONE OF THE FOLLOWING FORMS.. +* =========== DOCUMENTATION =========== * -* DFLAG=-1.D0 DFLAG=0.D0 DFLAG=1.D0 DFLAG=-2.D0 +* Online html documentation available at +* http://www.netlib.org/lapack/explore-html/ * -* (DH11 DH12) (1.D0 DH12) (DH11 1.D0) (1.D0 0.D0) -* H=( ) ( ) ( ) ( ) -* (DH21 DH22), (DH21 1.D0), (-1.D0 DH22), (0.D0 1.D0). -* LOCATIONS 2-4 OF DPARAM CONTAIN DH11, DH21, DH12, AND DH22 -* RESPECTIVELY. (VALUES OF 1.D0, -1.D0, OR 0.D0 IMPLIED BY THE -* VALUE OF DPARAM(1) ARE NOT STORED IN DPARAM.) +* Definition +* ========== * -* THE VALUES OF GAMSQ AND RGAMSQ SET IN THE DATA STATEMENT MAY BE -* INEXACT. THIS IS OK AS THEY ARE ONLY USED FOR TESTING THE SIZE -* OF DD1 AND DD2. ALL ACTUAL SCALING OF DATA IS DONE USING GAM. +* SUBROUTINE DROTMG(DD1,DD2,DX1,DY1,DPARAM) +* +* .. Scalar Arguments .. +* DOUBLE PRECISION DD1,DD2,DX1,DY1 +* .. +* .. Array Arguments .. +* DOUBLE PRECISION DPARAM(5) +* .. +* +* Purpose +* ======= * +*>\details \b Purpose: +*>\verbatim +*> +*> CONSTRUCT THE MODIFIED GIVENS TRANSFORMATION MATRIX H WHICH ZEROS +*> THE SECOND COMPONENT OF THE 2-VECTOR (DSQRT(DD1)*DX1,DSQRT(DD2)*> DY2)**T. +*> WITH DPARAM(1)=DFLAG, H HAS ONE OF THE FOLLOWING FORMS.. +*> +*> DFLAG=-1.D0 DFLAG=0.D0 DFLAG=1.D0 DFLAG=-2.D0 +*> +*> (DH11 DH12) (1.D0 DH12) (DH11 1.D0) (1.D0 0.D0) +*> H=( ) ( ) ( ) ( ) +*> (DH21 DH22), (DH21 1.D0), (-1.D0 DH22), (0.D0 1.D0). +*> LOCATIONS 2-4 OF DPARAM CONTAIN DH11, DH21, DH12, AND DH22 +*> RESPECTIVELY. (VALUES OF 1.D0, -1.D0, OR 0.D0 IMPLIED BY THE +*> VALUE OF DPARAM(1) ARE NOT STORED IN DPARAM.) +*> +*> THE VALUES OF GAMSQ AND RGAMSQ SET IN THE DATA STATEMENT MAY BE +*> INEXACT. THIS IS OK AS THEY ARE ONLY USED FOR TESTING THE SIZE +*> OF DD1 AND DD2. ALL ACTUAL SCALING OF DATA IS DONE USING GAM. +*> +*> +*>\endverbatim * * Arguments * ========= * -* DD1 (input/output) DOUBLE PRECISION +*> \param[in,out] DD1 +*> \verbatim +*> DD1 is DOUBLE PRECISION +*> \endverbatim +*> +*> \param[in,out] DD2 +*> \verbatim +*> DD2 is DOUBLE PRECISION +*> \endverbatim +*> +*> \param[in,out] DX1 +*> \verbatim +*> DX1 is DOUBLE PRECISION +*> \endverbatim +*> +*> \param[in] DY1 +*> \verbatim +*> DY1 is DOUBLE PRECISION +*> \endverbatim +*> +*> \param[in,out] DPARAM +*> \verbatim +*> DPARAM is DOUBLE PRECISION array, dimension 5 +*> DPARAM(1)=DFLAG +*> DPARAM(2)=DH11 +*> DPARAM(3)=DH21 +*> DPARAM(4)=DH12 +*> DPARAM(5)=DH22 +*> \endverbatim +*> +* +* Authors +* ======= +* +*> \author Univ. of Tennessee +*> \author Univ. of California Berkeley +*> \author Univ. of Colorado Denver +*> \author NAG Ltd. +* +*> \date November 2011 * -* DD2 (input/output) DOUBLE PRECISION +*> \ingroup double_blas_level1 * -* DX1 (input/output) DOUBLE PRECISION +* ===================================================================== + SUBROUTINE DROTMG(DD1,DD2,DX1,DY1,DPARAM) * -* DY1 (input) DOUBLE PRECISION +* -- Reference BLAS level1 routine (version 3.4.0) -- +* -- Reference BLAS is a software package provided by Univ. of Tennessee, -- +* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- +* November 2011 * -* DPARAM (input/output) DOUBLE PRECISION array, dimension 5 -* DPARAM(1)=DFLAG -* DPARAM(2)=DH11 -* DPARAM(3)=DH21 -* DPARAM(4)=DH12 -* DPARAM(5)=DH22 +* .. Scalar Arguments .. + DOUBLE PRECISION DD1,DD2,DX1,DY1 +* .. +* .. Array Arguments .. + DOUBLE PRECISION DPARAM(5) +* .. * * ===================================================================== * |