Simple,

I want to do full pivoting on a matrix that has less rank than row count. And after full pivoting can i get new indices or do i have to edit full pivoting function? I want to apply coordinate partitioning algorithm.

thanks in advance.

Are you talking about LU or QR full pivoting? Anyway, in both cases you can get the right and left permutations. Just look at the documentation of the respective class, for instance:

http://eigen.tuxfamily.org/dox-devel/cl ... 355479dd67

Thank you very much,

I like Eigen Library very much except this submatrix martitioning scheme called "Block<derived>" class thing.

Conguratilations, please go on.