version 1.12, 2016/08/27 15:34:43
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version 1.17, 2023/08/07 08:39:15
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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 ZBBCSD + dependencies |
*> Download ZBBCSD + dependencies |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zbbcsd.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zbbcsd.f"> |
*> [TGZ]</a> |
*> [TGZ]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zbbcsd.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zbbcsd.f"> |
*> [ZIP]</a> |
*> [ZIP]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zbbcsd.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zbbcsd.f"> |
*> [TXT]</a> |
*> [TXT]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
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* THETA, PHI, U1, LDU1, U2, LDU2, V1T, LDV1T, |
* THETA, PHI, U1, LDU1, U2, LDU2, V1T, LDV1T, |
* V2T, LDV2T, B11D, B11E, B12D, B12E, B21D, B21E, |
* V2T, LDV2T, B11D, B11E, B12D, B12E, B21D, B21E, |
* B22D, B22E, RWORK, LRWORK, INFO ) |
* B22D, B22E, RWORK, LRWORK, INFO ) |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
* CHARACTER JOBU1, JOBU2, JOBV1T, JOBV2T, TRANS |
* CHARACTER JOBU1, JOBU2, JOBV1T, JOBV2T, TRANS |
* INTEGER INFO, LDU1, LDU2, LDV1T, LDV2T, LRWORK, M, P, Q |
* INTEGER INFO, LDU1, LDU2, LDV1T, LDV2T, LRWORK, M, P, Q |
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* COMPLEX*16 U1( LDU1, * ), U2( LDU2, * ), V1T( LDV1T, * ), |
* COMPLEX*16 U1( LDU1, * ), U2( LDU2, * ), V1T( LDV1T, * ), |
* $ V2T( LDV2T, * ) |
* $ V2T( LDV2T, * ) |
* .. |
* .. |
* |
* |
* |
* |
*> \par Purpose: |
*> \par Purpose: |
* ============= |
* ============= |
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*> |
*> |
*> \param[in,out] V2T |
*> \param[in,out] V2T |
*> \verbatim |
*> \verbatim |
*> V2T is COMPLEX*16 array, dimenison (LDV2T,M-Q) |
*> V2T is COMPLEX*16 array, dimension (LDV2T,M-Q) |
*> On entry, an (M-Q)-by-(M-Q) matrix. On exit, V2T is |
*> On entry, an (M-Q)-by-(M-Q) matrix. On exit, V2T is |
*> premultiplied by the conjugate transpose of the right |
*> premultiplied by the conjugate transpose of the right |
*> singular vector matrix common to [ B12 0 0 ; 0 -I 0 ] and |
*> singular vector matrix common to [ B12 0 0 ; 0 -I 0 ] and |
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*> |
*> |
*> \param[out] RWORK |
*> \param[out] RWORK |
*> \verbatim |
*> \verbatim |
*> RWORK is DOUBLE PRECISION array, dimension (MAX(1,LWORK)) |
*> RWORK is DOUBLE PRECISION array, dimension (MAX(1,LRWORK)) |
*> On exit, if INFO = 0, WORK(1) returns the optimal LWORK. |
*> On exit, if INFO = 0, RWORK(1) returns the optimal LRWORK. |
*> \endverbatim |
*> \endverbatim |
*> |
*> |
*> \param[in] LRWORK |
*> \param[in] LRWORK |
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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 |
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* |
* |
*> \ingroup complex16OTHERcomputational |
*> \ingroup complex16OTHERcomputational |
* |
* |
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$ V2T, LDV2T, B11D, B11E, B12D, B12E, B21D, B21E, |
$ V2T, LDV2T, B11D, B11E, B12D, B12E, B21D, B21E, |
$ B22D, B22E, RWORK, LRWORK, INFO ) |
$ B22D, B22E, RWORK, LRWORK, INFO ) |
* |
* |
* -- LAPACK computational routine (version 3.6.1) -- |
* -- LAPACK computational 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..-- |
* June 2016 |
|
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
CHARACTER JOBU1, JOBU2, JOBV1T, JOBV2T, TRANS |
CHARACTER JOBU1, JOBU2, JOBV1T, JOBV2T, TRANS |
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* .. Parameters .. |
* .. Parameters .. |
INTEGER MAXITR |
INTEGER MAXITR |
PARAMETER ( MAXITR = 6 ) |
PARAMETER ( MAXITR = 6 ) |
DOUBLE PRECISION HUNDRED, MEIGHTH, ONE, PIOVER2, TEN, ZERO |
DOUBLE PRECISION HUNDRED, MEIGHTH, ONE, TEN, ZERO |
PARAMETER ( HUNDRED = 100.0D0, MEIGHTH = -0.125D0, |
PARAMETER ( HUNDRED = 100.0D0, MEIGHTH = -0.125D0, |
$ ONE = 1.0D0, PIOVER2 = 1.57079632679489662D0, |
$ ONE = 1.0D0, TEN = 10.0D0, ZERO = 0.0D0 ) |
$ TEN = 10.0D0, ZERO = 0.0D0 ) |
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COMPLEX*16 NEGONECOMPLEX |
COMPLEX*16 NEGONECOMPLEX |
PARAMETER ( NEGONECOMPLEX = (-1.0D0,0.0D0) ) |
PARAMETER ( NEGONECOMPLEX = (-1.0D0,0.0D0) ) |
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DOUBLE PRECISION PIOVER2 |
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PARAMETER ( PIOVER2 = 1.57079632679489661923132169163975144210D0 ) |
* .. |
* .. |
* .. Local Scalars .. |
* .. Local Scalars .. |
LOGICAL COLMAJOR, LQUERY, RESTART11, RESTART12, |
LOGICAL COLMAJOR, LQUERY, RESTART11, RESTART12, |