version 1.12, 2014/01/27 09:28:15
|
version 1.18, 2023/08/07 08:38:47
|
Line 2
|
Line 2
|
* |
* |
* =========== 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 DGEBAK + dependencies |
*> Download DGEBAK + dependencies |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dgebak.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dgebak.f"> |
*> [TGZ]</a> |
*> [TGZ]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dgebak.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dgebak.f"> |
*> [ZIP]</a> |
*> [ZIP]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dgebak.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dgebak.f"> |
*> [TXT]</a> |
*> [TXT]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
* |
* |
* SUBROUTINE DGEBAK( JOB, SIDE, N, ILO, IHI, SCALE, M, V, LDV, |
* SUBROUTINE DGEBAK( JOB, SIDE, N, ILO, IHI, SCALE, M, V, LDV, |
* INFO ) |
* INFO ) |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
* CHARACTER JOB, SIDE |
* CHARACTER JOB, SIDE |
* INTEGER IHI, ILO, INFO, LDV, M, N |
* INTEGER IHI, ILO, INFO, LDV, M, N |
Line 28
|
Line 28
|
* .. Array Arguments .. |
* .. Array Arguments .. |
* DOUBLE PRECISION SCALE( * ), V( LDV, * ) |
* DOUBLE PRECISION SCALE( * ), V( LDV, * ) |
* .. |
* .. |
* |
* |
* |
* |
*> \par Purpose: |
*> \par Purpose: |
* ============= |
* ============= |
Line 47
|
Line 47
|
*> \verbatim |
*> \verbatim |
*> JOB is CHARACTER*1 |
*> JOB is CHARACTER*1 |
*> Specifies the type of backward transformation required: |
*> Specifies the type of backward transformation required: |
*> = 'N', do nothing, return immediately; |
*> = 'N': do nothing, return immediately; |
*> = 'P', do backward transformation for permutation only; |
*> = 'P': do backward transformation for permutation only; |
*> = 'S', do backward transformation for scaling only; |
*> = 'S': do backward transformation for scaling only; |
*> = 'B', do backward transformations for both permutation and |
*> = 'B': do backward transformations for both permutation and |
*> scaling. |
*> scaling. |
*> JOB must be the same as the argument JOB supplied to DGEBAL. |
*> JOB must be the same as the argument JOB supplied to DGEBAL. |
*> \endverbatim |
*> \endverbatim |
Line 117
|
Line 117
|
* 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 doubleGEcomputational |
*> \ingroup doubleGEcomputational |
* |
* |
Line 130
|
Line 128
|
SUBROUTINE DGEBAK( JOB, SIDE, N, ILO, IHI, SCALE, M, V, LDV, |
SUBROUTINE DGEBAK( JOB, SIDE, N, ILO, IHI, SCALE, M, V, LDV, |
$ INFO ) |
$ INFO ) |
* |
* |
* -- LAPACK computational routine (version 3.4.0) -- |
* -- 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..-- |
* November 2011 |
|
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
CHARACTER JOB, SIDE |
CHARACTER JOB, SIDE |
Line 239
|
Line 236
|
$ GO TO 40 |
$ GO TO 40 |
IF( I.LT.ILO ) |
IF( I.LT.ILO ) |
$ I = ILO - II |
$ I = ILO - II |
K = SCALE( I ) |
K = INT( SCALE( I ) ) |
IF( K.EQ.I ) |
IF( K.EQ.I ) |
$ GO TO 40 |
$ GO TO 40 |
CALL DSWAP( M, V( I, 1 ), LDV, V( K, 1 ), LDV ) |
CALL DSWAP( M, V( I, 1 ), LDV, V( K, 1 ), LDV ) |
Line 253
|
Line 250
|
$ GO TO 50 |
$ GO TO 50 |
IF( I.LT.ILO ) |
IF( I.LT.ILO ) |
$ I = ILO - II |
$ I = ILO - II |
K = SCALE( I ) |
K = INT( SCALE( I ) ) |
IF( K.EQ.I ) |
IF( K.EQ.I ) |
$ GO TO 50 |
$ GO TO 50 |
CALL DSWAP( M, V( I, 1 ), LDV, V( K, 1 ), LDV ) |
CALL DSWAP( M, V( I, 1 ), LDV, V( K, 1 ), LDV ) |