Levy¶
- class gob.benchmarks.levy.Levy¶
Bases:
BenchmarkThe Levy function.
\(f(x) = \sin(\pi w_1)^2 + \sum_{i=1}^{d-1}(w_i - 1)^2[1 + 10 \sin(\pi w_i +1)^2] + (w_d - 1)^2[1 + sin^2(2\pi w_d)]\), where \(w_i = \frac{x_i + 3}{4}\).
Its minimum is \(0\) achieved at \(x_i = 1\).
- expr(x)¶
The expression of the function.
- Parameters:
x (array-like) – The point at which to evaluate the function.
- Returns:
The value of the function at x.
- Return type:
float