[BACK]Return to dlarre.f CVS log [TXT] [DIR] Up to [local] / rpl / lapack / lapack

Diff for /rpl/lapack/lapack/dlarre.f between versions 1.16 and 1.24

version 1.16, 2014/01/27 09:28:22 version 1.24, 2023/08/07 08:38:57
Line 2 Line 2
 *  *
 *  =========== DOCUMENTATION ===========  *  =========== DOCUMENTATION ===========
 *  *
 * Online html documentation available at   * Online html documentation available at
 *            http://www.netlib.org/lapack/explore-html/   *            http://www.netlib.org/lapack/explore-html/
 *  *
 *> \htmlonly  *> \htmlonly
 *> Download DLARRE + dependencies   *> Download DLARRE + dependencies
 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlarre.f">   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlarre.f">
 *> [TGZ]</a>   *> [TGZ]</a>
 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlarre.f">   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlarre.f">
 *> [ZIP]</a>   *> [ZIP]</a>
 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlarre.f">   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlarre.f">
 *> [TXT]</a>  *> [TXT]</a>
 *> \endhtmlonly   *> \endhtmlonly
 *  *
 *  Definition:  *  Definition:
 *  ===========  *  ===========
Line 22 Line 22
 *                           RTOL1, RTOL2, SPLTOL, NSPLIT, ISPLIT, M,  *                           RTOL1, RTOL2, SPLTOL, NSPLIT, ISPLIT, M,
 *                           W, WERR, WGAP, IBLOCK, INDEXW, GERS, PIVMIN,  *                           W, WERR, WGAP, IBLOCK, INDEXW, GERS, PIVMIN,
 *                           WORK, IWORK, INFO )  *                           WORK, IWORK, INFO )
 *   *
 *       .. Scalar Arguments ..  *       .. Scalar Arguments ..
 *       CHARACTER          RANGE  *       CHARACTER          RANGE
 *       INTEGER            IL, INFO, IU, M, N, NSPLIT  *       INTEGER            IL, INFO, IU, M, N, NSPLIT
Line 34 Line 34
 *       DOUBLE PRECISION   D( * ), E( * ), E2( * ), GERS( * ),  *       DOUBLE PRECISION   D( * ), E( * ), E2( * ), GERS( * ),
 *      $                   W( * ),WERR( * ), WGAP( * ), WORK( * )  *      $                   W( * ),WERR( * ), WGAP( * ), WORK( * )
 *       ..  *       ..
 *    *
 *  *
 *> \par Purpose:  *> \par Purpose:
 *  =============  *  =============
Line 78 Line 78
 *> \param[in,out] VL  *> \param[in,out] VL
 *> \verbatim  *> \verbatim
 *>          VL is DOUBLE PRECISION  *>          VL is DOUBLE PRECISION
   *>          If RANGE='V', the lower bound for the eigenvalues.
   *>          Eigenvalues less than or equal to VL, or greater than VU,
   *>          will not be returned.  VL < VU.
   *>          If RANGE='I' or ='A', DLARRE computes bounds on the desired
   *>          part of the spectrum.
 *> \endverbatim  *> \endverbatim
 *>  *>
 *> \param[in,out] VU  *> \param[in,out] VU
 *> \verbatim  *> \verbatim
 *>          VU is DOUBLE PRECISION  *>          VU is DOUBLE PRECISION
 *>          If RANGE='V', the lower and upper bounds for the eigenvalues.  *>          If RANGE='V', the upper bound for the eigenvalues.
 *>          Eigenvalues less than or equal to VL, or greater than VU,  *>          Eigenvalues less than or equal to VL, or greater than VU,
 *>          will not be returned.  VL < VU.  *>          will not be returned.  VL < VU.
 *>          If RANGE='I' or ='A', DLARRE computes bounds on the desired  *>          If RANGE='I' or ='A', DLARRE computes bounds on the desired
Line 93 Line 98
 *> \param[in] IL  *> \param[in] IL
 *> \verbatim  *> \verbatim
 *>          IL is INTEGER  *>          IL is INTEGER
   *>          If RANGE='I', the index of the
   *>          smallest eigenvalue to be returned.
   *>          1 <= IL <= IU <= N.
 *> \endverbatim  *> \endverbatim
 *>  *>
 *> \param[in] IU  *> \param[in] IU
 *> \verbatim  *> \verbatim
 *>          IU is INTEGER  *>          IU is INTEGER
 *>          If RANGE='I', the indices (in ascending order) of the  *>          If RANGE='I', the index of the
 *>          smallest and largest eigenvalues to be returned.  *>          largest eigenvalue to be returned.
 *>          1 <= IL <= IU <= N.  *>          1 <= IL <= IU <= N.
 *> \endverbatim  *> \endverbatim
 *>  *>
Line 142 Line 150
 *>          RTOL2 is DOUBLE PRECISION  *>          RTOL2 is DOUBLE PRECISION
 *>           Parameters for bisection.  *>           Parameters for bisection.
 *>           An interval [LEFT,RIGHT] has converged if  *>           An interval [LEFT,RIGHT] has converged if
 *>           RIGHT-LEFT.LT.MAX( RTOL1*GAP, RTOL2*MAX(|LEFT|,|RIGHT|) )  *>           RIGHT-LEFT < MAX( RTOL1*GAP, RTOL2*MAX(|LEFT|,|RIGHT|) )
 *> \endverbatim  *> \endverbatim
 *>  *>
 *> \param[in] SPLTOL  *> \param[in] SPLTOL
Line 244 Line 252
 *> \verbatim  *> \verbatim
 *>          INFO is INTEGER  *>          INFO is INTEGER
 *>          = 0:  successful exit  *>          = 0:  successful exit
 *>          > 0:  A problem occured in DLARRE.  *>          > 0:  A problem occurred in DLARRE.
 *>          < 0:  One of the called subroutines signaled an internal problem.  *>          < 0:  One of the called subroutines signaled an internal problem.
 *>                Needs inspection of the corresponding parameter IINFO  *>                Needs inspection of the corresponding parameter IINFO
 *>                for further information.  *>                for further information.
Line 263 Line 271
 *  Authors:  *  Authors:
 *  ========  *  ========
 *  *
 *> \author Univ. of Tennessee   *> \author Univ. of Tennessee
 *> \author Univ. of California Berkeley   *> \author Univ. of California Berkeley
 *> \author Univ. of Colorado Denver   *> \author Univ. of Colorado Denver
 *> \author NAG Ltd.   *> \author NAG Ltd.
 *  *
 *> \date September 2012  *> \ingroup OTHERauxiliary
 *  
 *> \ingroup auxOTHERauxiliary  
 *  *
 *> \par Further Details:  *> \par Further Details:
 *  =====================  *  =====================
Line 297 Line 303
      $                    W, WERR, WGAP, IBLOCK, INDEXW, GERS, PIVMIN,       $                    W, WERR, WGAP, IBLOCK, INDEXW, GERS, PIVMIN,
      $                    WORK, IWORK, INFO )       $                    WORK, IWORK, INFO )
 *  *
 *  -- LAPACK auxiliary routine (version 3.4.2) --  *  -- LAPACK auxiliary routine --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --  *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--  *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
 *     September 2012  
 *  *
 *     .. Scalar Arguments ..  *     .. Scalar Arguments ..
       CHARACTER          RANGE        CHARACTER          RANGE
Line 352 Line 357
 *     ..  *     ..
 *     .. External Subroutines ..  *     .. External Subroutines ..
       EXTERNAL           DCOPY, DLARNV, DLARRA, DLARRB, DLARRC, DLARRD,        EXTERNAL           DCOPY, DLARNV, DLARRA, DLARRB, DLARRC, DLARRD,
      $                   DLASQ2       $                   DLASQ2, DLARRK
 *     ..  *     ..
 *     .. Intrinsic Functions ..  *     .. Intrinsic Functions ..
       INTRINSIC          ABS, MAX, MIN        INTRINSIC          ABS, MAX, MIN
Line 362 Line 367
 *  *
   
       INFO = 0        INFO = 0
   *
   *     Quick return if possible
   *
         IF( N.LE.0 ) THEN
            RETURN
         END IF
 *  *
 *     Decode RANGE  *     Decode RANGE
 *  *
Line 886 Line 896
   
       RETURN        RETURN
 *  *
 *     end of DLARRE  *     End of DLARRE
 *  *
       END        END
Removed from v.1.16  
changed lines
  Added in v.1.24

CVSweb interface <joel.bertrand@systella.fr>