> we just don't bother doing large matrix multiplications, because they're so expensive Sure, I agree. I'm not a specialist in numerical lin.alg., but I've hea

> we just don't bother doing large matrix multiplications, because they're so expensive Sure, I agree. I'm not a specialist in numerical lin.alg., but I've heard it said that if you're spending a lot of time on large dense matrix multiplications, you're probably approaching the problem in the wrong way.