version 1.11, 2011/11/21 22:19:33
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version 1.18, 2017/06/17 10:53:55
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*> \brief \b DLAQR5 |
*> \brief \b DLAQR5 performs a single small-bulge multi-shift QR sweep. |
* |
* |
* =========== 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 DLAQR5 + dependencies |
*> Download DLAQR5 + dependencies |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlaqr5.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlaqr5.f"> |
*> [TGZ]</a> |
*> [TGZ]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlaqr5.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlaqr5.f"> |
*> [ZIP]</a> |
*> [ZIP]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlaqr5.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlaqr5.f"> |
*> [TXT]</a> |
*> [TXT]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
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* SUBROUTINE DLAQR5( WANTT, WANTZ, KACC22, N, KTOP, KBOT, NSHFTS, |
* SUBROUTINE DLAQR5( WANTT, WANTZ, KACC22, N, KTOP, KBOT, NSHFTS, |
* SR, SI, H, LDH, ILOZ, IHIZ, Z, LDZ, V, LDV, U, |
* SR, SI, H, LDH, ILOZ, IHIZ, Z, LDZ, V, LDV, U, |
* LDU, NV, WV, LDWV, NH, WH, LDWH ) |
* LDU, NV, WV, LDWV, NH, WH, LDWH ) |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
* INTEGER IHIZ, ILOZ, KACC22, KBOT, KTOP, LDH, LDU, LDV, |
* INTEGER IHIZ, ILOZ, KACC22, KBOT, KTOP, LDH, LDU, LDV, |
* $ LDWH, LDWV, LDZ, N, NH, NSHFTS, NV |
* $ LDWH, LDWV, LDZ, N, NH, NSHFTS, NV |
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* $ V( LDV, * ), WH( LDWH, * ), WV( LDWV, * ), |
* $ V( LDV, * ), WH( LDWH, * ), WV( LDWV, * ), |
* $ Z( LDZ, * ) |
* $ Z( LDZ, * ) |
* .. |
* .. |
* |
* |
* |
* |
*> \par Purpose: |
*> \par Purpose: |
* ============= |
* ============= |
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*> |
*> |
*> \param[in,out] Z |
*> \param[in,out] Z |
*> \verbatim |
*> \verbatim |
*> Z is DOUBLE PRECISION array of size (LDZ,IHI) |
*> Z is DOUBLE PRECISION array of size (LDZ,IHIZ) |
*> If WANTZ = .TRUE., then the QR Sweep orthogonal |
*> If WANTZ = .TRUE., then the QR Sweep orthogonal |
*> similarity transformation is accumulated into |
*> similarity transformation is accumulated into |
*> Z(ILOZ:IHIZ,ILO:IHI) from the right. |
*> Z(ILOZ:IHIZ,ILOZ:IHIZ) from the right. |
*> If WANTZ = .FALSE., then Z is unreferenced. |
*> If WANTZ = .FALSE., then Z is unreferenced. |
*> \endverbatim |
*> \endverbatim |
*> |
*> |
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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 June 2016 |
* |
* |
*> \ingroup doubleOTHERauxiliary |
*> \ingroup doubleOTHERauxiliary |
* |
* |
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$ SR, SI, H, LDH, ILOZ, IHIZ, Z, LDZ, V, LDV, U, |
$ SR, SI, H, LDH, ILOZ, IHIZ, Z, LDZ, V, LDV, U, |
$ LDU, NV, WV, LDWV, NH, WH, LDWH ) |
$ LDU, NV, WV, LDWV, NH, WH, LDWH ) |
* |
* |
* -- LAPACK auxiliary routine (version 3.4.0) -- |
* -- 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..-- |
* November 2011 |
* June 2016 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
INTEGER IHIZ, ILOZ, KACC22, KBOT, KTOP, LDH, LDU, LDV, |
INTEGER IHIZ, ILOZ, KACC22, KBOT, KTOP, LDH, LDU, LDV, |