Dear Sir or Madam,

I tried opening a New Topic on this but it didn't work.
I am just starting to use Eigen with C++ and need to make use of sparse matrices and solvers.
From what I can gather in the documentation it almost seems like the only way to make a sparse matrix is to allocate memory for the entire matrix then compress the result. Is this true?

I have systems that could be 1e6 -by- 1e6 with only 1e4 or 1e5 non zero entries.

Can you help?

Thanks in advance.

David Bergman

Moved to Eigen forum. If you have problems with your Forum account, or otherwise posting in the Eigen forum (or any other forum hosted on forum.kde.org), please send a email to forum-admin@kde.org.

Please have a look at the sparse tutorial, in particular:

http://eigen.tuxfamily.org/dox-devel/Tu ... rseFilling