/*
   This is a simple program to calculate Hydrogen spectrum
   Readers are sugguest to read related books to understand the theory.
   Author: Muguangde 07/21/2014-15:10

*/


#include<iostream>
#define R 109667.581
using namespace std;

void func(int i)
{
    int n2 = 0, n3 = 0;//seting n3 here to limit first 10 spectrum lines
    n2 = i + 1;
    n3 = i + 11;
    for (n2 ; n2 <n3; n2++)
    {
        cout << "n1= " << i << " n2= " << n2 << endl;
        cout <<"Wavelength(nm)= "<<1e7 / (R*double((1.0 / (i*i)) - (1.0 / (n2*n2))))<<endl;
        
    }
}

int main()
{
    int n1 = 0;
    for (n1 = 1; n1 <7; n1++)
    {
        func(n1);//calling function func to calculate wavelength, n1 from 1 to 6
        cout << endl;
    }

    system("pause");
    return 0;
}