| Re: [eigen] Opinions on some minor features for 3.2 |
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- To: eigen <eigen@xxxxxxxxxxxxxxxxxxx>
- Subject: Re: [eigen] Opinions on some minor features for 3.2
- From: Gael Guennebaud <gael.guennebaud@xxxxxxxxx>
- Date: Wed, 20 Mar 2013 17:38:56 +0100
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On Wed, Mar 20, 2013 at 4:56 PM, Billy Araujo <billyaraujo@xxxxxxxxx> wrote:
> It would be nice if Eigen had a feature in Sparse and Dense Matrices
> to eliminate a row/column thus reducing size of matrix and obtain
> permutation vector and a right hand vector with the know values.
>
> similiar suggested by:
> http://eigen.tuxfamily.org/bz/show_bug.cgi?id=273
>
> this would be useful for finite element analysis. I have done this on
> top of eigen and can contribute my code for further clean up and
> testing as I am not too familiar with eigen's inner architecture.
OK, this is clearly not for 3.2, but I'm still interested to see your
approach in more details. So feel free to add a bug report with your
code (even not polished, it's just to make your approach clearer).
Probably as a new entry since bug 273 is about simply changing the row
by en empty one with 1 one the diagonal, that is a bit different but
still interesting to preserve fixed size blocks!
gael