[Lapack] Symbolic QR factorization

[Julien Langou]

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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