Re: [eigen] Using SparseLU to calculate the determinant. |

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*To*: eigen@xxxxxxxxxxxxxxxxxxx*Subject*: Re: [eigen] Using SparseLU to calculate the determinant.*From*: Désiré NUENTSA WAKAM <desire.nuentsa_wakam@xxxxxxxx>*Date*: Tue, 16 Apr 2013 12:06:16 +0200

SparseLU<MatrixType> lu;

.... Desire On 04/15/2013 07:25 PM, Gael Guennebaud wrote:

Do you have an idea to add balancing to SparseLU (API-wise)? We should make sure whether this can be easily added without breaking the API or requiring a new class. gael On Mon, Apr 15, 2013 at 5:52 PM, Desire NUENTSA <desire.nuentsa_wakam@xxxxxxxx> wrote:Hi, Please, find a feature request at http://eigen.tuxfamily.org/bz/show_bug.cgi?id=588 with a patch to do that. In my opinion, We should add a feature to balance the matrix before pushing the patch. Nuentsa W. On 04/13/2013 05:39 PM, Joseph Maestri wrote: Hi, Decided to email this since SparseLU is in 3.2.0-beta1. Currently, calculating the determinant of a sparse matrix can be achieved using the SparseCholesky module. Is there a plan to extend this functionality to the SparseLU module? Not sure how trivial this is since I have not looked into the specifics of the implementation and how the factorisation is stored. Regards, Joseph

**References**:**[eigen] Using SparseLU to calculate the determinant.***From:*Joseph Maestri

**Re: [eigen] Using SparseLU to calculate the determinant.***From:*Desire NUENTSA

**Re: [eigen] Using SparseLU to calculate the determinant.***From:*Gael Guennebaud

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