Test Functions

                      for Unconstrained Global Optimization

Shubert Function

r Number of variables: n = 2 .

r Definition:

 

 

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

r Number of local minima: several local minima.

r The global minima: 18 global minima  f(x^*) = -186.7309.

r MATLAB Code: download shub.m

r Function graph.