convergence rate的用法和樣例：
例句
- We obtain an upper bounded estimate for the convergence rate of the piecewise linear interpolation.
摘要給出了分段線性插值收斂速度的一種估計。 - The algorithm resetting of the convergence of the conjugate gradient is also employed to speed up the convergence rate.
還採用重置共扼梯度法加快了演算法的收斂速度。
