(a)
Sphere function
(b)
Rosenbrock function
(c)
Sum of powers function
(d)
Sin function
(e)
Rastrigin function
(f)
Griewank function
(g)
Ackley function
(h)
Weierstrass function
(i)
RO-Rastrigin function
(j)
RO-Griewank function
(k)
RO-Ackley function
(l)
RO-Weierstrass function
Figure 7:
The median convergence characteristics of 40-D test functions.