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version 1.17, 2017/06/17 10:54:21
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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 ZLAQPS + dependencies |
*> Download ZLAQPS + dependencies |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zlaqps.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zlaqps.f"> |
*> [TGZ]</a> |
*> [TGZ]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zlaqps.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zlaqps.f"> |
*> [ZIP]</a> |
*> [ZIP]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zlaqps.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zlaqps.f"> |
*> [TXT]</a> |
*> [TXT]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
* |
* |
* SUBROUTINE ZLAQPS( M, N, OFFSET, NB, KB, A, LDA, JPVT, TAU, VN1, |
* SUBROUTINE ZLAQPS( M, N, OFFSET, NB, KB, A, LDA, JPVT, TAU, VN1, |
* VN2, AUXV, F, LDF ) |
* VN2, AUXV, F, LDF ) |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
* INTEGER KB, LDA, LDF, M, N, NB, OFFSET |
* INTEGER KB, LDA, LDF, M, N, NB, OFFSET |
* .. |
* .. |
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* DOUBLE PRECISION VN1( * ), VN2( * ) |
* DOUBLE PRECISION VN1( * ), VN2( * ) |
* COMPLEX*16 A( LDA, * ), AUXV( * ), F( LDF, * ), TAU( * ) |
* COMPLEX*16 A( LDA, * ), AUXV( * ), F( LDF, * ), TAU( * ) |
* .. |
* .. |
* |
* |
* |
* |
*> \par Purpose: |
*> \par Purpose: |
* ============= |
* ============= |
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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 September 2012 |
*> \date December 2016 |
* |
* |
*> \ingroup complex16OTHERauxiliary |
*> \ingroup complex16OTHERauxiliary |
* |
* |
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*> LAPACK Working Note 176 |
*> LAPACK Working Note 176 |
* |
* |
*> \htmlonly |
*> \htmlonly |
*> <a href="http://www.netlib.org/lapack/lawnspdf/lawn176.pdf">[PDF]</a> |
*> <a href="http://www.netlib.org/lapack/lawnspdf/lawn176.pdf">[PDF]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* ===================================================================== |
* ===================================================================== |
SUBROUTINE ZLAQPS( M, N, OFFSET, NB, KB, A, LDA, JPVT, TAU, VN1, |
SUBROUTINE ZLAQPS( M, N, OFFSET, NB, KB, A, LDA, JPVT, TAU, VN1, |
$ VN2, AUXV, F, LDF ) |
$ VN2, AUXV, F, LDF ) |
* |
* |
* -- LAPACK auxiliary routine (version 3.4.2) -- |
* -- LAPACK auxiliary 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..-- |
* September 2012 |
* December 2016 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
INTEGER KB, LDA, LDF, M, N, NB, OFFSET |
INTEGER KB, LDA, LDF, M, N, NB, OFFSET |
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ITEMP = NINT( VN2( LSTICC ) ) |
ITEMP = NINT( VN2( LSTICC ) ) |
VN1( LSTICC ) = DZNRM2( M-RK, A( RK+1, LSTICC ), 1 ) |
VN1( LSTICC ) = DZNRM2( M-RK, A( RK+1, LSTICC ), 1 ) |
* |
* |
* NOTE: The computation of VN1( LSTICC ) relies on the fact that |
* NOTE: The computation of VN1( LSTICC ) relies on the fact that |
* SNRM2 does not fail on vectors with norm below the value of |
* SNRM2 does not fail on vectors with norm below the value of |
* SQRT(DLAMCH('S')) |
* SQRT(DLAMCH('S')) |
* |
* |
VN2( LSTICC ) = VN1( LSTICC ) |
VN2( LSTICC ) = VN1( LSTICC ) |
LSTICC = ITEMP |
LSTICC = ITEMP |