C++ program to generate Geometric Progression(GP) series

Here is a C++ program to generate Geometric Progression(GP) series


 SOURCE CODE OUTPUT

#include<iostream>
#include<math.h>
using namespace std;
int main()
{
    long r,n,a1,an;
    cout<<"Enter first term ";
    cin>>a1;
    cout<<"Enter common ratio ";
    cin>>r;
    cout<<"Enter number of terms";
    cin>>n;
    cout<<"Geometric series : ";
    for(int y=0;y<=n;y++)
    {
        an=a1*pow(r,y);
        cout<<an<<" ";
    }
    return 0;
}

Any questions regarding to program please write in comments.