The formula that underlies the implementation is given by $$f(\mathbf{x}) = \sum_{i=1}^n |\mathbf{x}_i|^{i+1}$$ with \(\mathbf{x}_i \in [-1, 1], i = 1, \ldots, n\).
makePowellSumFunction(dimensions)[integer(1)]
Size of corresponding parameter space.
[smoof_single_objective_function]
S. Rahnamyan, H. R. Tizhoosh, N. M. M. Salama, A Novel Population Initialization Method for Accelerating Evolutionary Algorithms, Computers and Mathematics with Applications, vol. 53, no. 10, pp. 1605-1614, 2007.