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[Lapack] Symbolic QR factorization


Morning, nope there is none. LAPACK's focused on dense linear algebra, no 
sparse, neither QR nor LU. Julien.


On Fri, 12 Jan 2007, Eduardo Pimentel wrote:


Good morning,

I need to apply a sparse factorization A = QR via givens rotations...
... is there any routine in LAPACK to determine the nonzero structure of
R, givens the matrix A.

Thanks in advance,
Eduardo.
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