version 1.10, 2011/11/21 20:43:22
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version 1.17, 2017/06/17 10:54:30
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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 ZTGSEN + dependencies |
*> Download ZTGSEN + dependencies |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/ztgsen.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/ztgsen.f"> |
*> [TGZ]</a> |
*> [TGZ]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/ztgsen.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/ztgsen.f"> |
*> [ZIP]</a> |
*> [ZIP]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/ztgsen.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/ztgsen.f"> |
*> [TXT]</a> |
*> [TXT]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
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* SUBROUTINE ZTGSEN( IJOB, WANTQ, WANTZ, SELECT, N, A, LDA, B, LDB, |
* SUBROUTINE ZTGSEN( IJOB, WANTQ, WANTZ, SELECT, N, A, LDA, B, LDB, |
* ALPHA, BETA, Q, LDQ, Z, LDZ, M, PL, PR, DIF, |
* ALPHA, BETA, Q, LDQ, Z, LDZ, M, PL, PR, DIF, |
* WORK, LWORK, IWORK, LIWORK, INFO ) |
* WORK, LWORK, IWORK, LIWORK, INFO ) |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
* LOGICAL WANTQ, WANTZ |
* LOGICAL WANTQ, WANTZ |
* INTEGER IJOB, INFO, LDA, LDB, LDQ, LDZ, LIWORK, LWORK, |
* INTEGER IJOB, INFO, LDA, LDB, LDQ, LDZ, LIWORK, LWORK, |
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* COMPLEX*16 A( LDA, * ), ALPHA( * ), B( LDB, * ), |
* COMPLEX*16 A( LDA, * ), ALPHA( * ), B( LDB, * ), |
* $ BETA( * ), Q( LDQ, * ), WORK( * ), Z( LDZ, * ) |
* $ BETA( * ), Q( LDQ, * ), WORK( * ), Z( LDZ, * ) |
* .. |
* .. |
* |
* |
* |
* |
*> \par Purpose: |
*> \par Purpose: |
* ============= |
* ============= |
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* 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 June 2016 |
* |
* |
*> \ingroup complex16OTHERcomputational |
*> \ingroup complex16OTHERcomputational |
* |
* |
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$ ALPHA, BETA, Q, LDQ, Z, LDZ, M, PL, PR, DIF, |
$ ALPHA, BETA, Q, LDQ, Z, LDZ, M, PL, PR, DIF, |
$ WORK, LWORK, IWORK, LIWORK, INFO ) |
$ WORK, LWORK, IWORK, LIWORK, 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 |
* June 2016 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
LOGICAL WANTQ, WANTZ |
LOGICAL WANTQ, WANTZ |
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* subspaces. |
* subspaces. |
* |
* |
M = 0 |
M = 0 |
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IF( .NOT.LQUERY .OR. IJOB.NE.0 ) THEN |
DO 10 K = 1, N |
DO 10 K = 1, N |
ALPHA( K ) = A( K, K ) |
ALPHA( K ) = A( K, K ) |
BETA( K ) = B( K, K ) |
BETA( K ) = B( K, K ) |
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$ M = M + 1 |
$ M = M + 1 |
END IF |
END IF |
10 CONTINUE |
10 CONTINUE |
|
END IF |
* |
* |
IF( IJOB.EQ.1 .OR. IJOB.EQ.2 .OR. IJOB.EQ.4 ) THEN |
IF( IJOB.EQ.1 .OR. IJOB.EQ.2 .OR. IJOB.EQ.4 ) THEN |
LWMIN = MAX( 1, 2*M*( N-M ) ) |
LWMIN = MAX( 1, 2*M*( N-M ) ) |