include proper comments

Problem 6 (20 points): MATLAB script-6 Create a m file (script file) that will evaluate the given function f(x,y) (Note: This is not a function as MATLAB considers one, yet a mathematical function.) for any two user specified values x and y. The function is defined as follows: (x+y x 0 and y20 x + y2 f(x,y) = x 0 and y