Re: How to make it faster?

On Apr 9, 1:19 pm, Hallvard B Furuseth <h.b.furus...@[EMAIL PROTECTED]
>
wrote:
> istillsh...@[EMAIL PROTECTED]
 writes:
> >> Can also get rid of the multiplications with exp0:
> >> Instead of exp1, exp2, x0, ... z2, keep variables
> >> with values (current exp1)/exp0 ... (current z2)/exp0.
>
> > I don't understand this
>
>   exp1 = exp(x->data[0] - 1.0);
>   exp2 = exp(x->data[1] - 1.0);
>   for (i = 0; i < sz; i++) {
>     x0 = g0[i];
>     y0 = f0[i];
>     (no other changes in the loop)
>   }
>
> Variables <exp,x,y,z><0,1,2> now have values (original value / exp0).
> sum and df->data do not change (except due to rounding), since
> they get values (foo/exp0) / (bar/exp0) instead of foo/bar.

Got it.  So smart.