C++ program to find sum of series 1+x+x^2+……+x^n

C++ program to find sum of series 1+x+x^2+......+x^n

#include<iostream.h>
#include<conio.h>
#include<math.h>

void main()
{
clrscr(); //to clear the screen
long i,n,x,sum=1;

cout<<“1+x+x^2+……+x^n”;
cout<<“nnEnter the value of x and n:”;
cin>>x>>n;

for(i=1;i<=n;++i)
sum+=pow(x,i);
cout<<“nSum=”<<sum;
getch(); //to stop the screen
}

2 thoughts on “C++ program to find sum of series 1+x+x^2+……+x^n

  1. Navanath Patil

    above program is correct, but you are considered as first term is 1 manually. it cannot calculated from formula.

    Instead of that some changes in your program
    for loop is initialize with zero (0) instead of one(1)
    because power of any number is always 1 and this is our first term of series

    Reply
  2. Haresh

    U used a function….instead of using loop…so can u plz …write the same programme using a function….

    Reply

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