英语翻译利用Matlab软件,通过调用基本的几个插值函数,对于同一函数 采用两种不同的插值方法,即拉格朗日（Lagran

英语翻译
利用Matlab软件,通过调用基本的几个插值函数,对于同一函数 采用两种不同的插值方法,即拉格朗日（Lagrangea）插值和分段线性插值两种插值方法,对比这两种插值函数得到的不同的插值函数 与 的图像,并观察这两个插值函数得图形与原函数 的关系,我们可以看出拉格朗日插函数只有在某个特定的区间内才会符合原函数的走向,并且进行要高次插值,才能使插值函数图像贴近原于函数图像,如果超出了这个区间之外,则插值函数图形会发生震荡,失去与愿函数的贴切性,而分段插值函数的图像在整体趋势上是符合原函数的走向的,其只适用于在较小的区间内的高次插值问题.分段插值函数的图像是折线图,即是由连接两个插值点之间的线段组的一条折线图,失去了原函数的光滑性,这样只有在给足够多的点的情况下才能使得分段插值函数与原函数更为贴切,这样就使得问题变得繁琐,其只适用于要求光滑度不高的函数插值问题.
就是讲这段话翻译成英文而已

Use of Matlab software, by calling the basic several interpolation function, for the same function by using two kinds of different interpolation method, i.e. Lagrange (Lagrangea) interpolation and the piecewise linear interpolation two interpolation method, compare the two kinds of interpolation function get different interpolation function and image, and observe the two interpolation function to the relationship between the graphics and opreation.the, we can see that Lagrange put function only in a certain range will conform to the trend of the antiderivative, and to high time interpolation, ability makes interpolation function image close to the original at the function image, if beyond the outside the interval, the interpolation function graphic will oscillate and lose and let the appropriate sex, and subsection interpolation function images in the overall trend is accord with the trend of the antiderivative of, its only applicable to small interval high time interpolation. Section of the interpolation function image is line charts, that is, by connecting the two interpolation points of the line between group a line chart, lost the antiderivative of smooth, so that only in to enough points can make segmentation interpolation function and opreation.the more apt, this make problems become tedious, its only applies to the requirements of function method is not high smoothness.