Dixon-Price¶
- class gob.benchmarks.dixonprice.Dixonprice¶
Bases:
BenchmarkThe Dixon-Price function.
\(f(x) = (x_1 - 1)^2 + \sum_{i=1}^d i (2x_i^2 - x_{i-1})^2\).
Its minimum is \(0\) achieved at \(x_i = 2^\frac{2^i - 2}{2^i}\).
- 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