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From: mecej4 on 11 Apr 2008 15:25
lleshuang(a)gmail.com wrote:
> I have a qustion about Lapack. I don't known which subroutines
> suitable for my problem.
>
>
> My problem is solving a linear equation system which has the following
> feature:
> real, symmetric, Sparse, sometimes positive and sometimes
> inpositive, and band storage.
>
> Which subroutines is suitable for my problem? I'm not sure about the
> selection.
>
> Please give me some advice. Thanks!

If your matrix is truly banded, the Lapack routines DGBTRF and DGBTRS
are the ones to use.

- mecej4
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