Rastrigin¶ class gob.benchmarks.rastrigin.Rastrigin[source]¶ Bases: Benchmark The Rastrigin function. \(f(x) = \sum_{i=1}^d [x_i ^2 + 10 - 10\cos(2\pi x_i)]\) Its minimum is \(0\) achieved at \(x = 0\). expr(x)[source]¶ 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
