The Cube Function is defined as follows: $$f(\mathbf{x}) = 100 (\mathbf{x}_2 - \mathbf{x}_1^3)^2 + (1 - \mathbf{x}_1)^2.$$ The box-constraints are given by \(\mathbf{x}_i \in [-10, 10], i = 1, 2.\)
makeCubeFunction()
[smoof_single_objective_function
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A. Lavi, T. P. Vogel (eds), Recent Advances in Optimization Techniques, John Wliley & Sons, 1966.