From: walter_at_[hidden]
Date: 2001-03-14 16:41:49


Hello,

Andrew Lumsdaine wrote:

> In short. Sparse matrices are used for efficiency of
> representation. Direct methods can be used with sparse matrices
> although ordering and factorization are complicated and there will
be
> some growth in memory as a result of fill-in. Iterative solvers
are
> easy to write, but subtle and quick to anger -- use the right
> preconditioner.

Thanks for the clarification.

Kind regards

J. Walter