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version 1.18, 2023/08/07 08:38:49
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*> |
*> |
*> \verbatim |
*> \verbatim |
*> |
*> |
*> DGEQR2P computes a QR factorization of a real m by n matrix A: |
*> DGEQR2P computes a QR factorization of a real m-by-n matrix A: |
*> A = Q * R. The diagonal entries of R are nonnegative. |
*> |
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*> A = Q * ( R ), |
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*> ( 0 ) |
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*> |
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*> where: |
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*> |
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*> Q is a m-by-m orthogonal matrix; |
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*> R is an upper-triangular n-by-n matrix with nonnegative diagonal |
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*> entries; |
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*> 0 is a (m-n)-by-n zero matrix, if m > n. |
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*> |
*> \endverbatim |
*> \endverbatim |
* |
* |
* Arguments: |
* Arguments: |
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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 doubleGEcomputational |
*> \ingroup doubleGEcomputational |
* |
* |
*> \par Further Details: |
*> \par Further Details: |
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* ===================================================================== |
* ===================================================================== |
SUBROUTINE DGEQR2P( M, N, A, LDA, TAU, WORK, INFO ) |
SUBROUTINE DGEQR2P( M, N, A, LDA, TAU, WORK, 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, LDA, M, N |
INTEGER INFO, LDA, M, N |