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*> \brief \b DLAED3 used by sstedc. Finds the roots of the secular equation and updates the eigenvectors. Used when the original matrix is tridiagonal. |
*> \brief \b DLAED3 used by DSTEDC. Finds the roots of the secular equation and updates the eigenvectors. Used when the original matrix is tridiagonal. |
* |
* |
* =========== DOCUMENTATION =========== |
* =========== DOCUMENTATION =========== |
* |
* |
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*> |
*> |
*> \param[in] Q2 |
*> \param[in] Q2 |
*> \verbatim |
*> \verbatim |
*> Q2 is DOUBLE PRECISION array, dimension (LDQ2, N) |
*> Q2 is DOUBLE PRECISION array, dimension (LDQ2*N) |
*> The first K columns of this matrix contain the non-deflated |
*> The first K columns of this matrix contain the non-deflated |
*> eigenvectors for the split problem. |
*> eigenvectors for the split problem. |
*> \endverbatim |
*> \endverbatim |
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*> \author Univ. of Colorado Denver |
*> \author Univ. of Colorado Denver |
*> \author NAG Ltd. |
*> \author NAG Ltd. |
* |
* |
*> \date December 2016 |
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* |
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*> \ingroup auxOTHERcomputational |
*> \ingroup auxOTHERcomputational |
* |
* |
*> \par Contributors: |
*> \par Contributors: |
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SUBROUTINE DLAED3( K, N, N1, D, Q, LDQ, RHO, DLAMDA, Q2, INDX, |
SUBROUTINE DLAED3( K, N, N1, D, Q, LDQ, RHO, DLAMDA, Q2, INDX, |
$ CTOT, W, S, INFO ) |
$ CTOT, W, S, INFO ) |
* |
* |
* -- LAPACK computational routine (version 3.7.0) -- |
* -- 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..-- |
* December 2016 |
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* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
INTEGER INFO, K, LDQ, N, N1 |
INTEGER INFO, K, LDQ, N, N1 |