Question

Write a program to calculate the sum of the following series:

  1 + 1/2 + 1/3 + 1/4 + 1/5 + 1/6 + 1/7 + ...  + 1/20

Answer 1

#include <stdio.h>


int main(void) {
 double sum=0.0;//Summ
  for(int i=1;i<=20;i++)
    {
      sum+=(1.0)/(i*1.0);
      printf("1/%i",i);
      if(i!=20)
        printf("+");
    }
  printf("=%lf\n",sum);
  return 0;
}