C Program to find the sum of the series 1^2+2^2+3^2+…..+n^2

C Program to find the sum of the series 1²+2²+3²+…..+n²
Enter the end limit at the runtime. 

    In this example, we calculate the sum of the above mentioned series till the end-limit entered by the user. We have used built-in function pow(x,y) to find the power of the given number.

    Here in the output we have entered the value of end-limit as number 7 which gives a sum of 140.  

PROGRAM

#include<stdio.h>

#include<math.h>

#include<conio.h>

void main()

{

    int n,sum=0,i;

    printf("Enter the end limit :");

    scanf("%d",&n);

    for(i=1;i<=n;i++)

    {

        sum=sum+pow(i,2);

    }

    printf("Sum of the series is : %d",sum);

    getch();

}

OUTPUT

 Enter the end limit :7

 Sum of the series is : 140

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