A plot of the transfer function
of Example 2 from Section
and various approximated transfer functions generated by the zero-pole interpolation method. We also include the transfer function resulting when the singular term is removed, to which the approximated functions converge. We illustrate the components of \(T(i \omega)\) for \(\omega \ge 0\). We only include nonnegative ω because of the symmetry of both T and its approximations. See Section 7.2 for further details.