Test Functions

                      for Unconstrained Global Optimization

Matyas Function

r Number of variables: 2 variables.

r Definition:

 

 

r Search domain: −10 ≤ x_i ≤ 10, i = 1, 2.

r Number of local minima: no local minima except the global one.

r The global minima: x^* =  (0, 0), f(x^*) = 0.

r MATLAB Code: download matyas.m

r Function graph: