Description

Two-dimensional test function based on the formula

f(\mathbf{x}) = ∑_{i=1}^{10} ≤ft[2 + 2i - (e^{ix_1} + e^{ix_2})\right]^2

with \mathbf{x}_1, \mathbf{x}_2 \in [-1, 1].

Usage

Value

[smoof_single_objective_function]

References

See http://al-roomi.org/benchmarks/unconstrained/2-dimensions/134-jennrich-sampson-s-function.