Test Functions

                      for Unconstrained Global Optimization

Shekel Functions

r Number of variables: 4 variables.

r Definition:

 

 

 

 

 

 

 

r Search domain: 0 ≤ x_i ≤ 10, i = 1, 2, 3, 4.

r Number of local minima: m local minima.

r The global minima: x^* =  (4, 4 , 4, 4),

                                                    f(x^*) = -10.1532 for m = 5.

                                                    f(x^*) = -10.4029 for m = 7.

                                                    f(x^*) = -10.5364 for m = 10.

r MATLAB Code: download shekel.m