最小二乘法(数值计算实验)

#include<iostream>
#include<conio.h>
#include <math.h>
using namespace std;
#define max_dimension 20
int n;
static double a[max_dimension][max_dimension];
static double b[max_dimension];
static double x[max_dimension];

void main()
{
cout<<"首先猜测拟合函数是一条一元二次方程，故可以求出拟合函数如下："<<endl;
double xi[4]={2,4,6,8};
double yi[4]={2,11,28,48};

double juzheng00=0;
double juzheng01=0;
double juzheng02=0;
double juzheng10=0;
double juzheng11=0;
double juzheng12=0;
double juzheng20=0;
double juzheng21=0;
double juzheng22=0;

double f0=0;
double f1=0;
double f2=0;