Appendix A

The wide range approximate solutions of Pollaczek’s integral calculated via the Wedepohl-Wilcox algorithm, trapezoidal integration, and Gauss-Kronrod algorithm, are depicted in Figure 11. There are some numerical oscillations, that are more noticeable in the real component case of the η₁₀ curve (its value is tabulated in Figure 5), when applying the Gauss-Kronrod algorithm in the following range 10^-4 < ξ < 10⁰.