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- To: eigen@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [eigen] Band diagonal matrices
- From: Gael Guennebaud <gael.guennebaud@xxxxxxxxx>
- Date: Sat, 19 Jun 2010 00:43:40 +0200
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Note that for band matrices, we already have a BandMatrix class
offering a banded storage which allows for more optimized algorithms.
gael
On Fri, Jun 18, 2010 at 8:13 PM, Sameer Agarwal
<sameeragarwal@xxxxxxxxxx> wrote:
> One thing I forgot to mention in my email about sparse matrices earlier is
> support for band diagonal and block band diagonal matrices. They occur often
> enough in problems, but also can arise in the construction of
> preconditioners. In those cases we should think about supporting
> 1. Constructor to build band diagonal matrices from a set of vectors.
> 2. Constructor to extract a set of bands from a given sparse matrix.
> 3. Band diagonal solvers.
> Sameer
>