Rastrigin
f
(
x
1
,
x
2
)
=
20
+
x
1
2
+
x
2
2
−
10
[
cos
(
2
π
x
1
)
+
cos
(
2
π
x
2
)
]
f(x_1, x_2) = 20 + x_1^2 + x_2^2 - 10[\cos(2\pi x_1) + \cos(2\pi x_2)]
f
(
x
1
,
x
2
)
=
20
+
x
1
2
+
x
2
2
−
10
[
cos
(
2
π
x
1
)
+
cos
(
2
π
x
2
)]
Contour plot
Superficie 3D