Using this multivariable function where e is an exponential function,

Create a function in MATLAB that takes a two-element vector input X = [x,y] and produces a the scalar output of z.

Then using that function in MATLAB, Use the default options of fminsearch, test several start points to make sure that you are finding the global minimum then use the output feature (the fourth output) of fminsearch see why your evaluation terminates.

z(x, y) = -xye = 2 + y 3