Two-dimensional test function based on the formula
$$f(\mathbf{x}) = (x_1^4 + x_2^4 + 2 x_1^2 x_2^2 - 4 x_1 + 3$$
with \(\mathbf{x}_1, \mathbf{x}_2 \in [-2000, 2000]\).
Usage
makeEngvallFunction()
Arguments
Value
An object of class SingleObjectiveFunction, representing the Complex Function.