C Program Sum of Squares Series
/* C program to calculate and print sum of the series 1^2+2^2+3^2+...+n^2 C program to print the sum of squares of all natural numbers from 1 to n. */ #include<stdio.h> int main() { int i,n,sum; printf("Enter the value of n: "); scanf("%d",&n); sum=0; /* loop to calculate sum from 1 to n*/ for(i=1;i<=n;i++) sum= sum+(i*i); /*display the sum on screen*/ printf("The Sum of the series 1^2+2^2+3^2+...+%d^2 is: %d\n",n,sum); return 0; }
Output
Enter the value of n: 5
The Sum of the series 1^2+2^2+3^2+…+5^2 is: 55