/*Example to show the syntax for using the optmum
library in Gauss. In the example below, we use
optmum to minimize the function f(x) = x^2, which
we define in the procedure below. Note that optmum
has two arguments. The second argument is a standard
argument but the first requires you give it a function
name (in this case f). & is a "pointer" that tells gauss
that the input is the name of a function. The function
should be the function that you want to minimize and
needs to be defined in a procedure, as we do below. */

new;
library optmum; 
{xmin,ymin,g,retcode}=optmum(&f,1);
"Value of x that mimimizes f(x) " xmin;
"The minimum value of y = f(x) " ymin;
end;


proc(1)=f(x);
local y;
y=x^2;
retp(y);
endp;