Hi,

On 8/18/06, Brian Budge <brian.budge@gmail.com> wrote:

Why in the world are you using a sparse matrix on a 3x3?  Unless you
have a very large data type (ie. not double), you'll almost definitely
see no gain from using a sparse representation, and it will be much
slower

I'm testing sparse matrix on a 3x3 because I'm developing a program to calculate voltages in electric power systems and the matrices involved can be 2x2, 3x3 or 100000x100000. Unfortunally, I know it's very hard to make a program with good performance at all those magnitudes.

Thanks for the answers,

Frederico
--
UFMG, Brazil