testnewtondif.cpp

牛顿差值

#include<iostream>
#include<math.h>
#include "NewtonDif.h"
using namespace std;
int main()
{
	NewtonDif po;
	double tx[6]={1940,1950,1960,1970,1980,1990};
	double ty[6]={132165,151326,179323,203302,226542,249633};
	
	po.ForwardDif(5,tx,ty);
	cout<<po.GetValue(1930)<<endl;
	po.BackwardDif(5,tx,ty);
	cout<<po.GetValue(2010)<<endl;
	return 0;
}