同济大学物理实验 数据处理 - 牛顿环不确定度

#include<iostream>
#include<cmath>
using namespace std;
int main()
{
    double Ri[] = { 386.83,350.30,348.77,352.68,346.12 };
    double Raverage = 0, t = 0;
    double lamdaR;
    int i;
    for (i = 0;i < 5;i++)
        t+= Ri[i];
    Raverage = t / 5;
    t = 0;
    cout << "Raverage=" << Raverage << endl;
    for (i = 0;i < 5;i++)
        t += pow(Ri[i] - Raverage, 2);
    lamdaR = sqrt(t / 4);
    cout << "lamdaR=" << lamdaR << endl;
    cout << "E=" << lamdaR / Raverage << endl;
    cout << "R=" << Raverage << "+-" << lamdaR << endl;

}