lagrange算法实验题目：Lagrange插值多项式

相关知识：通过n+1个节点的次数不超过n的Lagrange插值多项式为：

其中，Lagrange插值基函数 ，k=0,1,…,n。

另外，补充C语言绘制图形方面的内容如下

1．屏幕坐标系 坐标原点在屏幕的左上角，x轴水平向右，y轴垂直向下。2．常用的绘图函数

Newton算法

-lagrange algorithm experimental subject: Lagrange interpolation polynomial-related knowledge: through n+1 the number of nodes n of not more than the Lagrange interpolation polynomial as follows: one, Lagrange interpolation basis function, k = 0,1, ..., n. In addition, the added C language drawn graphics are as follows 1. Screen coordinate system coordinates of the origin of the upper-left corner of the screen, x-axis level of the right, y-axis vertically downward. 2. Mapping function commonly used Newton algorithm