version 1.9, 2011/11/21 22:19:47
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version 1.19, 2023/08/07 08:39:22
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*> \brief \b ZGTSVX |
*> \brief <b> ZGTSVX computes the solution to system of linear equations A * X = B for GT matrices </b> |
* |
* |
* =========== 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 ZGTSVX + dependencies |
*> Download ZGTSVX + dependencies |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zgtsvx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zgtsvx.f"> |
*> [TGZ]</a> |
*> [TGZ]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zgtsvx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zgtsvx.f"> |
*> [ZIP]</a> |
*> [ZIP]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zgtsvx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zgtsvx.f"> |
*> [TXT]</a> |
*> [TXT]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
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* SUBROUTINE ZGTSVX( FACT, TRANS, N, NRHS, DL, D, DU, DLF, DF, DUF, |
* SUBROUTINE ZGTSVX( FACT, TRANS, N, NRHS, DL, D, DU, DLF, DF, DUF, |
* DU2, IPIV, B, LDB, X, LDX, RCOND, FERR, BERR, |
* DU2, IPIV, B, LDB, X, LDX, RCOND, FERR, BERR, |
* WORK, RWORK, INFO ) |
* WORK, RWORK, INFO ) |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
* CHARACTER FACT, TRANS |
* CHARACTER FACT, TRANS |
* INTEGER INFO, LDB, LDX, N, NRHS |
* INTEGER INFO, LDB, LDX, N, NRHS |
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* $ DLF( * ), DU( * ), DU2( * ), DUF( * ), |
* $ DLF( * ), DU( * ), DU2( * ), DUF( * ), |
* $ WORK( * ), X( LDX, * ) |
* $ WORK( * ), X( LDX, * ) |
* .. |
* .. |
* |
* |
* |
* |
*> \par Purpose: |
*> \par Purpose: |
* ============= |
* ============= |
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*> |
*> |
*> \param[in,out] DLF |
*> \param[in,out] DLF |
*> \verbatim |
*> \verbatim |
*> DLF is or output) COMPLEX*16 array, dimension (N-1) |
*> DLF is COMPLEX*16 array, dimension (N-1) |
*> If FACT = 'F', then DLF is an input argument and on entry |
*> If FACT = 'F', then DLF is an input argument and on entry |
*> contains the (n-1) multipliers that define the matrix L from |
*> contains the (n-1) multipliers that define the matrix L from |
*> the LU factorization of A as computed by ZGTTRF. |
*> the LU factorization of A as computed by ZGTTRF. |
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*> |
*> |
*> \param[in,out] DF |
*> \param[in,out] DF |
*> \verbatim |
*> \verbatim |
*> DF is or output) COMPLEX*16 array, dimension (N) |
*> DF is COMPLEX*16 array, dimension (N) |
*> If FACT = 'F', then DF is an input argument and on entry |
*> If FACT = 'F', then DF is an input argument and on entry |
*> contains the n diagonal elements of the upper triangular |
*> contains the n diagonal elements of the upper triangular |
*> matrix U from the LU factorization of A. |
*> matrix U from the LU factorization of A. |
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*> |
*> |
*> \param[in,out] DUF |
*> \param[in,out] DUF |
*> \verbatim |
*> \verbatim |
*> DUF is or output) COMPLEX*16 array, dimension (N-1) |
*> DUF is COMPLEX*16 array, dimension (N-1) |
*> If FACT = 'F', then DUF is an input argument and on entry |
*> If FACT = 'F', then DUF is an input argument and on entry |
*> contains the (n-1) elements of the first superdiagonal of U. |
*> contains the (n-1) elements of the first superdiagonal of U. |
*> |
*> |
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*> |
*> |
*> \param[in,out] DU2 |
*> \param[in,out] DU2 |
*> \verbatim |
*> \verbatim |
*> DU2 is or output) COMPLEX*16 array, dimension (N-2) |
*> DU2 is COMPLEX*16 array, dimension (N-2) |
*> If FACT = 'F', then DU2 is an input argument and on entry |
*> If FACT = 'F', then DU2 is an input argument and on entry |
*> contains the (n-2) elements of the second superdiagonal of |
*> contains the (n-2) elements of the second superdiagonal of |
*> U. |
*> U. |
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*> |
*> |
*> \param[in,out] IPIV |
*> \param[in,out] IPIV |
*> \verbatim |
*> \verbatim |
*> IPIV is or output) INTEGER array, dimension (N) |
*> IPIV is INTEGER array, dimension (N) |
*> If FACT = 'F', then IPIV is an input argument and on entry |
*> If FACT = 'F', then IPIV is an input argument and on entry |
*> contains the pivot indices from the LU factorization of A as |
*> contains the pivot indices from the LU factorization of A as |
*> computed by ZGTTRF. |
*> computed by ZGTTRF. |
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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 |
|
* |
* |
*> \ingroup complex16OTHERcomputational |
*> \ingroup complex16GTsolve |
* |
* |
* ===================================================================== |
* ===================================================================== |
SUBROUTINE ZGTSVX( FACT, TRANS, N, NRHS, DL, D, DU, DLF, DF, DUF, |
SUBROUTINE ZGTSVX( FACT, TRANS, N, NRHS, DL, D, DU, DLF, DF, DUF, |
$ DU2, IPIV, B, LDB, X, LDX, RCOND, FERR, BERR, |
$ DU2, IPIV, B, LDB, X, LDX, RCOND, FERR, BERR, |
$ WORK, RWORK, INFO ) |
$ WORK, RWORK, INFO ) |
* |
* |
* -- LAPACK computational routine (version 3.4.0) -- |
* -- LAPACK driver 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..-- |
* November 2011 |
|
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
CHARACTER FACT, TRANS |
CHARACTER FACT, TRANS |