Test Functions

                      for Unconstrained Global Optimization

Easom Function

r Number of variables: n = 2.

r Definition:

 

 

r Search domain: −100 ≤ x_i ≤ 100, i = 1, 2.

r Number of local minima: several local minima.

r The global minima: x^* =  (π, π), f(x^*) = - 1.

r MATLAB Code: download easom.m

r Function graph: