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version 1.19, 2020/05/21 21:46:01
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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 DSBGVX + dependencies |
*> Download DSBGVX + dependencies |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dsbgvx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dsbgvx.f"> |
*> [TGZ]</a> |
*> [TGZ]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dsbgvx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dsbgvx.f"> |
*> [ZIP]</a> |
*> [ZIP]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dsbgvx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dsbgvx.f"> |
*> [TXT]</a> |
*> [TXT]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
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* SUBROUTINE DSBGVX( JOBZ, RANGE, UPLO, N, KA, KB, AB, LDAB, BB, |
* SUBROUTINE DSBGVX( JOBZ, RANGE, UPLO, N, KA, KB, AB, LDAB, BB, |
* LDBB, Q, LDQ, VL, VU, IL, IU, ABSTOL, M, W, Z, |
* LDBB, Q, LDQ, VL, VU, IL, IU, ABSTOL, M, W, Z, |
* LDZ, WORK, IWORK, IFAIL, INFO ) |
* LDZ, WORK, IWORK, IFAIL, INFO ) |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
* CHARACTER JOBZ, RANGE, UPLO |
* CHARACTER JOBZ, RANGE, UPLO |
* INTEGER IL, INFO, IU, KA, KB, LDAB, LDBB, LDQ, LDZ, M, |
* INTEGER IL, INFO, IU, KA, KB, LDAB, LDBB, LDQ, LDZ, M, |
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* DOUBLE PRECISION AB( LDAB, * ), BB( LDBB, * ), Q( LDQ, * ), |
* DOUBLE PRECISION AB( LDAB, * ), BB( LDBB, * ), Q( LDQ, * ), |
* $ W( * ), WORK( * ), Z( LDZ, * ) |
* $ W( * ), WORK( * ), Z( LDZ, * ) |
* .. |
* .. |
* |
* |
* |
* |
*> \par Purpose: |
*> \par Purpose: |
* ============= |
* ============= |
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*> \param[out] INFO |
*> \param[out] INFO |
*> \verbatim |
*> \verbatim |
*> INFO is INTEGER |
*> INFO is INTEGER |
*> = 0 : successful exit |
*> = 0: successful exit |
*> < 0 : if INFO = -i, the i-th argument had an illegal value |
*> < 0: if INFO = -i, the i-th argument had an illegal value |
*> <= N: if INFO = i, then i eigenvectors failed to converge. |
*> <= N: if INFO = i, then i eigenvectors failed to converge. |
*> Their indices are stored in IFAIL. |
*> Their indices are stored in IFAIL. |
*> > N : DPBSTF returned an error code; i.e., |
*> > N: DPBSTF returned an error code; i.e., |
*> if INFO = N + i, for 1 <= i <= N, then the leading |
*> if INFO = N + i, for 1 <= i <= N, then the leading |
*> minor of order i of B is not positive definite. |
*> minor of order i of B is not positive definite. |
*> The factorization of B could not be completed and |
*> The factorization of B could not be completed and |
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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 June 2016 |
*> \date June 2016 |
* |
* |
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$ LDBB, Q, LDQ, VL, VU, IL, IU, ABSTOL, M, W, Z, |
$ LDBB, Q, LDQ, VL, VU, IL, IU, ABSTOL, M, W, Z, |
$ LDZ, WORK, IWORK, IFAIL, INFO ) |
$ LDZ, WORK, IWORK, IFAIL, INFO ) |
* |
* |
* -- LAPACK driver routine (version 3.6.1) -- |
* -- LAPACK driver 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..-- |
* June 2016 |
* June 2016 |