Date: Sep 7, 2013 9:00 AM Author: analyst41@hotmail.com Subject: An optimization problem

consider f(x1,x2,...xn) = {1 + sum(xi)^2)} / {1 +sum{x(i)}

0 <=xi <=1 for all i.

The maximum function value of 1 occurs at either all x's = 0 or all x's = 1.

Can an explicit formula be given for the minimum?

Thanks.