Test Functions

                      for Unconstrained Global Optimization

Branin Function

r Number of variables: n =2.

r Definition:

 

 

r Search domain: −5 ≤ x₁ ≤ 10, 0 ≤ x₂ ≤ 15.

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

r The global minima: x^* =  (-π , 12.275), (π , 2.275), (9.42478, 2.475),

f(x^*) = 0.397887.

r MATLAB Code: download branin.m

r Function graph: