Re: [eigen] Band diagonal matrices

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And we already have Skyline matrices in unsupported/


2010/6/18 Gael Guennebaud <gael.guennebaud@xxxxxxxxx>:
> 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

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