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

Diff for /rpl/lapack/lapack/dtgevc.f between versions 1.14 and 1.15

version 1.14, 2016/08/27 15:34:41 version 1.15, 2017/06/17 10:54:05
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 DTGEVC + dependencies   *> Download DTGEVC + dependencies
 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dtgevc.f">   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dtgevc.f">
 *> [TGZ]</a>   *> [TGZ]</a>
 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dtgevc.f">   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dtgevc.f">
 *> [ZIP]</a>   *> [ZIP]</a>
 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dtgevc.f">   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dtgevc.f">
 *> [TXT]</a>  *> [TXT]</a>
 *> \endhtmlonly   *> \endhtmlonly
 *  *
 *  Definition:  *  Definition:
 *  ===========  *  ===========
 *  *
 *       SUBROUTINE DTGEVC( SIDE, HOWMNY, SELECT, N, S, LDS, P, LDP, VL,  *       SUBROUTINE DTGEVC( SIDE, HOWMNY, SELECT, N, S, LDS, P, LDP, VL,
 *                          LDVL, VR, LDVR, MM, M, WORK, INFO )  *                          LDVL, VR, LDVR, MM, M, WORK, INFO )
 *   *
 *       .. Scalar Arguments ..  *       .. Scalar Arguments ..
 *       CHARACTER          HOWMNY, SIDE  *       CHARACTER          HOWMNY, SIDE
 *       INTEGER            INFO, LDP, LDS, LDVL, LDVR, M, MM, N  *       INTEGER            INFO, LDP, LDS, LDVL, LDVR, M, MM, N
Line 30 Line 30
 *       DOUBLE PRECISION   P( LDP, * ), S( LDS, * ), VL( LDVL, * ),  *       DOUBLE PRECISION   P( LDP, * ), S( LDS, * ), VL( LDVL, * ),
 *      $                   VR( LDVR, * ), WORK( * )  *      $                   VR( LDVR, * ), WORK( * )
 *       ..  *       ..
 *    *
 *    *
 *  *
 *> \par Purpose:  *> \par Purpose:
 *  =============  *  =============
Line 49 Line 49
 *>  *>
 *> The right eigenvector x and the left eigenvector y of (S,P)  *> The right eigenvector x and the left eigenvector y of (S,P)
 *> corresponding to an eigenvalue w are defined by:  *> corresponding to an eigenvalue w are defined by:
 *>   *>
 *>    S*x = w*P*x,  (y**H)*S = w*(y**H)*P,  *>    S*x = w*P*x,  (y**H)*S = w*(y**H)*P,
 *>   *>
 *> where y**H denotes the conjugate tranpose of y.  *> where y**H denotes the conjugate tranpose of y.
 *> The eigenvalues are not input to this routine, but are computed  *> The eigenvalues are not input to this routine, but are computed
 *> directly from the diagonal blocks of S and P.  *> directly from the diagonal blocks of S and P.
 *>   *>
 *> This routine returns the matrices X and/or Y of right and left  *> This routine returns the matrices X and/or Y of right and left
 *> eigenvectors of (S,P), or the products Z*X and/or Q*Y,  *> eigenvectors of (S,P), or the products Z*X and/or Q*Y,
 *> where Z and Q are input matrices.  *> where Z and Q are input matrices.
 *> If Q and Z are the orthogonal factors from the generalized Schur  *> If Q and Z are the orthogonal factors from the generalized Schur
 *> factorization of a matrix pair (A,B), then Z*X and Q*Y  *> factorization of a matrix pair (A,B), then Z*X and Q*Y
 *> are the matrices of right and left eigenvectors of (A,B).  *> are the matrices of right and left eigenvectors of (A,B).
 *>   *>
 *> \endverbatim  *> \endverbatim
 *  *
 *  Arguments:  *  Arguments:
Line 179 Line 179
 *>          A complex eigenvector corresponding to a complex eigenvalue  *>          A complex eigenvector corresponding to a complex eigenvalue
 *>          is stored in two consecutive columns, the first holding the  *>          is stored in two consecutive columns, the first holding the
 *>          real part and the second the imaginary part.  *>          real part and the second the imaginary part.
 *>            *>
 *>          Not referenced if SIDE = 'L'.  *>          Not referenced if SIDE = 'L'.
 *> \endverbatim  *> \endverbatim
 *>  *>
Line 223 Line 223
 *  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 November 2011  *> \date December 2016
 *  *
 *> \ingroup doubleGEcomputational  *> \ingroup doubleGEcomputational
 *  *
Line 295 Line 295
       SUBROUTINE DTGEVC( SIDE, HOWMNY, SELECT, N, S, LDS, P, LDP, VL,        SUBROUTINE DTGEVC( SIDE, HOWMNY, SELECT, N, S, LDS, P, LDP, VL,
      $                   LDVL, VR, LDVR, MM, M, WORK, INFO )       $                   LDVL, VR, LDVR, MM, M, WORK, INFO )
 *  *
 *  -- LAPACK computational routine (version 3.4.0) --  *  -- LAPACK computational routine (version 3.7.0) --
 *  -- 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..--
 *     November 2011  *     December 2016
 *  *
 *     .. Scalar Arguments ..  *     .. Scalar Arguments ..
       CHARACTER          HOWMNY, SIDE        CHARACTER          HOWMNY, SIDE
Removed from v.1.14  
changed lines
  Added in v.1.15

CVSweb interface <joel.bertrand@systella.fr>