In this paper we give a simple interpolation of rational function-difference spline interpolation.

给出一种简单的有理分式插值——差分样条插值。

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A very simple method is to use linear interpolation, which assumes that the unknown function is linear between every pair of successive points.

一个非常简单的方法是使用线性插值，它假定未知函数的线性每对之间的连续点。

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By several simple aspects of three-dimensional space interpolation, some simple and practical algorithms are developed.

通过介绍三维内插的几种简单情形，导出了一些简单、实用的算法。

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