variable range

[Jerome BENOIT]

Hello,

a good idea is to make a change of variable in such a way that
the new variable are unconstrained.


I hope that helps,
Jerome

Sang-Joon Lee wrote:
> Hi,
> 
> In using the GSL "Multidimensional Minimization" algorithms, I would like
> to limit the range of variables.  For instance, in a function,
> f(x)=3*(x-4)*(x-4)+2, I would like to make x be a positive real number.
> I would appreciate if you let me know how to do this.
> 
>   Sincerely yours,
> 
>   Sang-Joon Lee
> 
> 
>