牛顿插值c语言分析作业,牛顿插值C语言程序

牛顿插值C语言程序,如有错误或要改进请不吝赐教

// xg.cpp : 定义控制台应用程序的入口点。

#include "stdafx.h"

#include

#include"math.h"

#define N 4

using namespace std;

void main()

{ void lin(double x[],double y[],double t,int n);

void newton(double a[],double b[],double t,double h,int n);

double t,h,d; int i,j,n,k;

double x[N]={0.4,0.5,0.6,0.7};

double y[N]={0.38942,0.47943,0.56464,0.64422}; double a[N],b[N];

h=0.1; //h为等距节点宽度，t为插值点

t=0.57891;

if(!h) cout<

else

{

if(tx[N-1])

cout<

else

{

cout<

lin(x,y,t,N);

cout<

}

}

}

void lin(double x[],double y[],double t,int n)

{

int i;double w,e,c; //w为逼近值e为余项 for(i=0;i

{if(t==x[i])

{

cout<

}