[Help-gsl] Solving a linear system with GC ..?

[Till Isambert]

...hello :)

I'm solving a (large) linear system of equations with a LU decomposition 
in GSL. I'm wondering if it would be faster to solve it with a 
preconditionned conjugate gradients method ? If such, which function 
should i use ..? Sorry if my question is trivial, actually i've looked 
inside the GSL documentation but i'm not so sure about how to proceed.

thanks in advance,

cheers