By function I mean something like f(x, y) = x^2 +y^2. My target function is different, of course.
The path I followed was calculating the Hessian and then testing for positive semidefiniteness. The problem is that the Hessian is too complex, as well as the result of the IsDefinite function. The function I'm trying to optimize involves a lot of variables and I don't think it'll be easy to analyze the Hessian.
I was wondering if there was something like IsConvex that returned true of false. To this regard, I saw a Convex function from the VariationalCalculus package, but didn't understand the example in the Maple help page.
Tahnks for your time,