Write a C++ Program to Calculate Sum of Series 1³+2³+3³+n³ with an example. The math formula to find Sum of Series 1³+2³+3³+……+n³ = (n(n + 1)/6)².
#include<iostream>
#include<cmath>
using namespace std;
int main()
{
int number, sum = 0;
cout << "Enter the Number to find sum of Series 1^3 + 2^3 = ";
cin >> number;
sum = pow(((number * (number + 1)) / 2), 2);
cout << "\nThe Sum of the Series 1^3 + 2^3 + .. upto " << number << " = " << sum << "\n\n";
return 0;
}
The below shown C++ Program to Calculate Sum of Series 1³+2³+3³+n³ is the same as the above. Here, we used C++ for loop to display the 1³+2³+3³+n³ series as an output.
#include<iostream>
#include<cmath>
using namespace std;
int main()
{
int number, sum = 0;
cout << "Enter the Number to find sum of Series 1^3 + 2^3 = ";
cin >> number;
sum = pow(((number * (number + 1)) / 2), 2);
cout << "\nThe Sum of the Series 1^3 + 2^3 + .. upto " << number << " = " << sum << "\n\n";
for(int i = 1; i <= number; i++)
{
if (i != number)
cout << i << "^3 + ";
else
cout << i << "^3 = " << sum;
}
return 0;
}
C++ Program to Calculate Sum of Series 1³+2³+3³+n³ using Functions
#include<iostream>
#include<cmath>
using namespace std;
void sumOf13Series (int number)
{
int sum = 0;
sum = pow(((number * (number + 1)) / 2), 2);
cout << "\nThe Sum of the Series 1^3 + 2^3 + .. upto " << number << " = " << sum << "\n\n";
for(int i = 1; i <= number; i++)
{
if (i != number)
cout << i << "^3 + ";
else
cout << i << "^3 = " << sum;
}
}
int main()
{
int number;
cout << "Enter the Number to find sum of Series 1^3 + 2^3 = ";
cin >> number;
sumOf13Series (number);
return 0;
}