Hi, I'm new to the forum, so hello to everyone!

I have a problem.

I would like to know if is available in Eigen3 a solver to get the eigenvalue and eigenvector of a sparse matrix.

I have tried different codes and have I tried to understand something but nothing. I'm not a rock in mathematic so sometimes i'm lost something.

There is someone that can help me?

thx in advance

lenny

See the wrapper to ARPACK: http://eigen.tuxfamily.org/dox-devel/un ... odule.html

If you only want the largest eigenvalue/vector, then search for the "power" method in this forum to get Eigen3-based code.