hi,

i use Simplex Downhill, but i think that with a fuction that i use i got large values of functions, could be because i use bad parameters or i have to use something that could give me the minimun not always the best, but less than largers value like 948883.0??? i mean i have to accept value among 0.5 and 100..change the ftol value doesn't happen anything good..for example in matlab the fminbnd function accept a range...do u understand what i mean?

thank you
Roby