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Diff for /rpl/lapack/lapack/ztgex2.f between versions 1.15 and 1.20

version 1.15, 2014/01/27 09:28:43 version 1.20, 2018/05/29 07:18:39
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 *  *
 *  =========== 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 ZTGEX2 + dependencies   *> Download ZTGEX2 + dependencies
 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/ztgex2.f">   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/ztgex2.f">
 *> [TGZ]</a>   *> [TGZ]</a>
 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/ztgex2.f">   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/ztgex2.f">
 *> [ZIP]</a>   *> [ZIP]</a>
 *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/ztgex2.f">   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/ztgex2.f">
 *> [TXT]</a>  *> [TXT]</a>
 *> \endhtmlonly   *> \endhtmlonly
 *  *
 *  Definition:  *  Definition:
 *  ===========  *  ===========
 *  *
 *       SUBROUTINE ZTGEX2( WANTQ, WANTZ, N, A, LDA, B, LDB, Q, LDQ, Z,  *       SUBROUTINE ZTGEX2( WANTQ, WANTZ, N, A, LDA, B, LDB, Q, LDQ, Z,
 *                          LDZ, J1, INFO )  *                          LDZ, J1, INFO )
 *   *
 *       .. Scalar Arguments ..  *       .. Scalar Arguments ..
 *       LOGICAL            WANTQ, WANTZ  *       LOGICAL            WANTQ, WANTZ
 *       INTEGER            INFO, J1, LDA, LDB, LDQ, LDZ, N  *       INTEGER            INFO, J1, LDA, LDB, LDQ, LDZ, N
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 *       COMPLEX*16         A( LDA, * ), B( LDB, * ), Q( LDQ, * ),  *       COMPLEX*16         A( LDA, * ), B( LDB, * ), Q( LDQ, * ),
 *      $                   Z( LDZ, * )  *      $                   Z( LDZ, * )
 *       ..  *       ..
 *    *
 *  *
 *> \par Purpose:  *> \par Purpose:
 *  =============  *  =============
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 *>  *>
 *> \param[in,out] A  *> \param[in,out] A
 *> \verbatim  *> \verbatim
 *>          A is COMPLEX*16 arrays, dimensions (LDA,N)  *>          A is COMPLEX*16 array, dimensions (LDA,N)
 *>          On entry, the matrix A in the pair (A, B).  *>          On entry, the matrix A in the pair (A, B).
 *>          On exit, the updated matrix A.  *>          On exit, the updated matrix A.
 *> \endverbatim  *> \endverbatim
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 *>  *>
 *> \param[in,out] B  *> \param[in,out] B
 *> \verbatim  *> \verbatim
 *>          B is COMPLEX*16 arrays, dimensions (LDB,N)  *>          B is COMPLEX*16 array, dimensions (LDB,N)
 *>          On entry, the matrix B in the pair (A, B).  *>          On entry, the matrix B in the pair (A, B).
 *>          On exit, the updated matrix B.  *>          On exit, the updated matrix B.
 *> \endverbatim  *> \endverbatim
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 *>  *>
 *> \param[in,out] Q  *> \param[in,out] Q
 *> \verbatim  *> \verbatim
 *>          Q is COMPLEX*16 array, dimension (LDZ,N)  *>          Q is COMPLEX*16 array, dimension (LDQ,N)
 *>          If WANTQ = .TRUE, on entry, the unitary matrix Q. On exit,  *>          If WANTQ = .TRUE, on entry, the unitary matrix Q. On exit,
 *>          the updated matrix Q.  *>          the updated matrix Q.
 *>          Not referenced if WANTQ = .FALSE..  *>          Not referenced if WANTQ = .FALSE..
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 *>           =0:  Successful exit.  *>           =0:  Successful exit.
 *>           =1:  The transformed matrix pair (A, B) would be too far  *>           =1:  The transformed matrix pair (A, B) would be too far
 *>                from generalized Schur form; the problem is ill-  *>                from generalized Schur form; the problem is ill-
 *>                conditioned.   *>                conditioned.
 *> \endverbatim  *> \endverbatim
 *  *
 *  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  *> \date June 2017
 *  *
 *> \ingroup complex16GEauxiliary  *> \ingroup complex16GEauxiliary
 *  *
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       SUBROUTINE ZTGEX2( WANTQ, WANTZ, N, A, LDA, B, LDB, Q, LDQ, Z,        SUBROUTINE ZTGEX2( WANTQ, WANTZ, N, A, LDA, B, LDB, Q, LDQ, Z,
      $                   LDZ, J1, INFO )       $                   LDZ, J1, INFO )
 *  *
 *  -- LAPACK auxiliary routine (version 3.4.2) --  *  -- LAPACK auxiliary routine (version 3.7.1) --
 *  -- 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  *     June 2017
 *  *
 *     .. Scalar Arguments ..  *     .. Scalar Arguments ..
       LOGICAL            WANTQ, WANTZ        LOGICAL            WANTQ, WANTZ
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       CALL ZLASSQ( 2*M*M, WORK, 1, SCALE, SUM )        CALL ZLASSQ( 2*M*M, WORK, 1, SCALE, SUM )
       SA = SCALE*SQRT( SUM )        SA = SCALE*SQRT( SUM )
 *  *
 *     THRES has been changed from   *     THRES has been changed from
 *        THRESH = MAX( TEN*EPS*SA, SMLNUM )  *        THRESH = MAX( TEN*EPS*SA, SMLNUM )
 *     to  *     to
 *        THRESH = MAX( TWENTY*EPS*SA, SMLNUM )  *        THRESH = MAX( TWENTY*EPS*SA, SMLNUM )
Removed from v.1.15  
changed lines
  Added in v.1.20

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