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.

针对数值方法（numerical method），时长I（Time I）记录了按循环向前积分并获得不动点误差（fixed point error）符合表4要求的解所需的时间。对于微扰/迭代方法（perturbative/iterative methods），时长I则记录了完成迭代计算所需的时间，此时得到的不动点误差与数值方法所得误差相当——可参见图6中曲线与黑色水平线的交点。针对微扰/迭代方法，我们还在时长II（Time II）项下记录了达到表4所示误差标准所需的时间。所有时长均为多次运行后的平均结果。