version 1.3, 2018/05/29 07:17:51
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version 1.4, 2020/05/21 21:45:56
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*> \brief \b DGELQ |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
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* ============= |
* ============= |
*> |
*> |
*> \verbatim |
*> \verbatim |
*> DGELQ computes a LQ factorization of an M-by-N matrix A. |
*> |
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*> DGELQ computes an LQ factorization of a real M-by-N matrix A: |
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*> |
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*> A = ( L 0 ) * Q |
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*> |
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*> where: |
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*> |
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*> Q is a N-by-N orthogonal matrix; |
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*> L is an lower-triangular M-by-M matrix; |
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*> 0 is a M-by-(N-M) zero matrix, if M < N. |
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*> |
*> \endverbatim |
*> \endverbatim |
* |
* |
* Arguments: |
* Arguments: |
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*> \verbatim |
*> \verbatim |
*> |
*> |
*> These details are particular for this LAPACK implementation. Users should not |
*> These details are particular for this LAPACK implementation. Users should not |
*> take them for granted. These details may change in the future, and are unlikely not |
*> take them for granted. These details may change in the future, and are not likely |
*> true for another LAPACK implementation. These details are relevant if one wants |
*> true for another LAPACK implementation. These details are relevant if one wants |
*> to try to understand the code. They are not part of the interface. |
*> to try to understand the code. They are not part of the interface. |
*> |
*> |
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SUBROUTINE DGELQ( M, N, A, LDA, T, TSIZE, WORK, LWORK, |
SUBROUTINE DGELQ( M, N, A, LDA, T, TSIZE, WORK, LWORK, |
$ INFO ) |
$ INFO ) |
* |
* |
* -- LAPACK computational routine (version 3.7.0) -- |
* -- LAPACK computational routine (version 3.9.0) -- |
* -- 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. -- |
* December 2016 |
* November 2019 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
INTEGER INFO, LDA, M, N, TSIZE, LWORK |
INTEGER INFO, LDA, M, N, TSIZE, LWORK |