Dear all,

I am looking for a way to solve a linear system resulting from Finite Difference discretization. I have a tridiagonal matrix, non-symmetric, with dimensions of about 1000*1000.
I am reading the Eigen documentation but I can't find anything about this particular matrix type.
Has somebody dealt with this problem before? I searched into the forum, but I didn't find any useful hints.

Thank you for your help,
Pietro

You are right, this is still a "todo" item. Meanwhile, you can use a sparse matrix with the SparseLU solver, though of course this won't be as efficient: http://eigen.tuxfamily.org/dox/group__S ... apter.html

Thank you for your reply!

I am currently using the SparseLU solver, and it works great for my problem;
I will wait for the update on tridiagonal systems then, thank you again!

Pietro