version 1.9, 2011/11/21 20:43:02
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version 1.19, 2018/05/29 07:18:05
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*> \brief \b DPTSVX |
*> \brief <b> DPTSVX computes the solution to system of linear equations A * X = B for PT 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 DPTSVX + dependencies |
*> Download DPTSVX + dependencies |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dptsvx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dptsvx.f"> |
*> [TGZ]</a> |
*> [TGZ]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dptsvx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dptsvx.f"> |
*> [ZIP]</a> |
*> [ZIP]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dptsvx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dptsvx.f"> |
*> [TXT]</a> |
*> [TXT]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
* |
* |
* SUBROUTINE DPTSVX( FACT, N, NRHS, D, E, DF, EF, B, LDB, X, LDX, |
* SUBROUTINE DPTSVX( FACT, N, NRHS, D, E, DF, EF, B, LDB, X, LDX, |
* RCOND, FERR, BERR, WORK, INFO ) |
* RCOND, FERR, BERR, WORK, INFO ) |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
* CHARACTER FACT |
* CHARACTER FACT |
* INTEGER INFO, LDB, LDX, N, NRHS |
* INTEGER INFO, LDB, LDX, N, NRHS |
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* $ E( * ), EF( * ), FERR( * ), WORK( * ), |
* $ E( * ), EF( * ), FERR( * ), WORK( * ), |
* $ X( LDX, * ) |
* $ X( LDX, * ) |
* .. |
* .. |
* |
* |
* |
* |
*> \par Purpose: |
*> \par Purpose: |
* ============= |
* ============= |
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*> |
*> |
*> \param[in,out] DF |
*> \param[in,out] DF |
*> \verbatim |
*> \verbatim |
*> DF is or output) DOUBLE PRECISION array, dimension (N) |
*> DF is DOUBLE PRECISION 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 diagonal matrix D |
*> contains the n diagonal elements of the diagonal matrix D |
*> from the L*D*L**T factorization of A. |
*> from the L*D*L**T factorization of A. |
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*> |
*> |
*> \param[in,out] EF |
*> \param[in,out] EF |
*> \verbatim |
*> \verbatim |
*> EF is or output) DOUBLE PRECISION array, dimension (N-1) |
*> EF is DOUBLE PRECISION array, dimension (N-1) |
*> If FACT = 'F', then EF is an input argument and on entry |
*> If FACT = 'F', then EF is an input argument and on entry |
*> contains the (n-1) subdiagonal elements of the unit |
*> contains the (n-1) subdiagonal elements of the unit |
*> bidiagonal factor L from the L*D*L**T factorization of A. |
*> bidiagonal factor L from the L*D*L**T factorization of A. |
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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 December 2016 |
* |
* |
*> \ingroup doubleOTHERcomputational |
*> \ingroup doublePTsolve |
* |
* |
* ===================================================================== |
* ===================================================================== |
SUBROUTINE DPTSVX( FACT, N, NRHS, D, E, DF, EF, B, LDB, X, LDX, |
SUBROUTINE DPTSVX( FACT, N, NRHS, D, E, DF, EF, B, LDB, X, LDX, |
$ RCOND, FERR, BERR, WORK, INFO ) |
$ RCOND, FERR, BERR, WORK, INFO ) |
* |
* |
* -- LAPACK computational routine (version 3.4.0) -- |
* -- 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..-- |
* November 2011 |
* December 2016 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
CHARACTER FACT |
CHARACTER FACT |