benchmarkfcns.schwefel221

benchmarkfcns.schwefel221(arg0: Annotated[numpy.typing.NDArray[numpy.float64], '[m, n]', 'flags.c_contiguous']) → Annotated[numpy.typing.NDArray[numpy.float64], '[m, 1]']

Computes the value of the Schwefel 2.21 function. SCORES = schwefel221(X) computes the value of the Schwefel 2.21 function at point X. schwefel221 accepts a matrix of size M-by-N and returns a vector SCORES of size M-by-1 in which each row contains the function value for the corresponding row of X. Properties:

  • Global minimum: 0

  • Location of global minimum: (0, 0, …, 0)

  • Number of dimensions: n

  • Recommended domain: x_i ∈ [-100, 100]

  • Number of local minima: 0 (It is unimodal)

  • Convexity: Convex

  • Separability: Non-separable

  • Modality: Unimodal

  • Differentiable: No

For more information, please visit: benchmarkfcns.info/doc/schwefel221fcn

Mathematical Definition

Visualization

schwefel221 landscape