newtf.c

求解差值真的范围场馆哟个自行车不是你沙发是但书

#include<stdio.h>
#include<conio.h>
#include<alloc.h>
double newtf(double x[],double y[],int n,double t)
{
int i,j;
double *s,p=0;
s=(double *)calloc(n+1,sizeof(double));
for(i=1;i<=n;i++)
{s[i]=y[i];
for(j=1;j<=n;j++)
if(j!=i)
s[i]*=(t-x[j])/(x[i]-x[j]);
p+=s[n];
}
free(s);
return(p);
}