Write a C program to determine the sum of the following harmonic series for a given value of N. 1 + ½ + 1/3 + ……….. + 1/n.

Write a C program to determine the sum of the following harmonic series for a given value of N.

1 + ½ + 1/3 + ………..  + 1/n.

Algorithm:

Step 1: Start

Step 2: Input the value of N

Step 3: Initialized i=1

Step 4: While i<=n repeat step 5

Step 5: sum=sum+(1.0/i), i++

Step 6: Print the sum is

Step 7: End

 

C Program:

#include<stdio.h>

int main()

{

    int n, i;

    float sum=0.0;

    printf ( “ Input an Integer Number : “);

    scanf("%d", &n);

    for (i=1; i<=n; i++)

    {

        sum=sum+(1.0/i);

    }

    {

        printf(" %.3f",sum);

    }

    return 0;

}