文件名称:shuzhifenxi
介绍说明－－下载内容均来自于网络，请自行研究使用
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。
实验用例： 已知函数y=f(x)的一张表：
x 0 10 20 30 40 50 60 70 80 90 100 110 120
y 5 1 7.5 3 4.5 8.8 15.5 6.5 -5 -10 -2 4.5 7
试验要求：利用Lagrange插值多项式 求被插值函数f(x)在点x=65处的近似值。建议：画出Lagrange插值多项式 的曲线。
-Related knowledge: By n+ 1 the number of nodes does not exceed the Lagrange interpolation polynomial n as follows: one, Lagrange interpolation basis function, k = 0,1, ..., n. Experimental use case: a known function y = f (x) of a table: x 0 10 20 30 40 50 60 70 80 90 100 110 120y 5 1 7.5 3 4.5 8.8 15.5 6.5-5-10-2 4.5 7 test requirements: for the use of Lagrange interpolation polynomial interpolation function was f (x) at the point x = 65 Department approximation. Recommendations: Lagrange interpolation polynomial to draw the curve.
其中，Lagrange插值基函数 ，k=0,1,…,n。
实验用例： 已知函数y=f(x)的一张表：
x 0 10 20 30 40 50 60 70 80 90 100 110 120
y 5 1 7.5 3 4.5 8.8 15.5 6.5 -5 -10 -2 4.5 7
试验要求：利用Lagrange插值多项式 求被插值函数f(x)在点x=65处的近似值。建议：画出Lagrange插值多项式 的曲线。
-Related knowledge: By n+ 1 the number of nodes does not exceed the Lagrange interpolation polynomial n as follows: one, Lagrange interpolation basis function, k = 0,1, ..., n. Experimental use case: a known function y = f (x) of a table: x 0 10 20 30 40 50 60 70 80 90 100 110 120y 5 1 7.5 3 4.5 8.8 15.5 6.5-5-10-2 4.5 7 test requirements: for the use of Lagrange interpolation polynomial interpolation function was f (x) at the point x = 65 Department approximation. Recommendations: Lagrange interpolation polynomial to draw the curve.
相关搜索： lagrange
(系统自动生成,下载前可以参看下载内容)
下载文件列表
复件 (2) 实验4.C