A finite difference numerical calculation has shown that the smaller the difference step is, the faster the difference solution approaches the analytic one.

该类方程的差分数值计算表明，当差分步长变小时，差分解很快逼近解析解。

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The structure of auxiliary function is one of the important contents in the mathematics teaching, it is one of the important solution approaches that students should grasp too.

辅助函数的构造是高等数学教学中的重要内容之一，也是学生所要掌握的重要的解题方法之一。

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In this paper, a survey of their advances in recent years is presented, including models, solution approaches and relevant problems, and possible trends and directions of future research are provided.

本文综述了近年来它们的研究进展，包括模型、求解方法以及相关问题，最后，指出这一领域未来研究的一些问题与方向。

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These white space teams also must have permission to explore the solution unencumbered by past success, using any and all technology, approaches and processes.

FORBES: Where Larry Page must manage risk, and invest time, as Google's new CEO

But in Europe, a clear-cut solution to the nursing crisis may prove to be elusive, as governments and international organizations have very different approaches to dealing with the problem.

CNN: Where have Europe's nurses gone?