Meanwhile a new method of calculating initial step size in one-dimensional searching is suggested.
一维搜索使用新的初始步长限制方法。
The fatigue crack growth curve from initial crack size till fatigue failure is simulated step by step.
循环续循环模拟计算出裂纹从初始长度一直到疲劳破坏的扩展曲线。
From the result we found that the predictability time is not only depend on initial error but also sensitive to the precision and the time step-size used in the computation.
实验结果表明：动力系统的预报时效不仅与初值误差有关，而且在一定条件下敏感地依赖于计算采用的时间步长和计算精度。
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