Timing results for three frequency response algorithms.

For the numerical method, Time I records the time required to integrate forward by cycles and obtain a solution with fixed point error as in Table 4. For the perturbative/iterative methods, Time I records the time required to compute iterations, resulting in a fixed point error comparable to that of the numerical method—see the crossing of the curves with the black horizontal line in Figure 6. For the perturbative/iterative methods, we also record under Time II the time required to achieve the errors as in Table 4. All times are averaged over runs.