This article is from solution of Let Us C by Yashwant Kanetkar. I also posted many another articles regarding solutions of Let Us C. If you have any problem regarding solution then give comment, I will surely reply your question.
Q. Write a program to add first seven terms of the following series using a for loop:
1/1! + 2/2! + 3/3! + ............
Ans.
#include<stdio.h>
#include<conio.h>
void main()
{
clrscr();
float n1, n2, ans=0, n1_fact=1;
for(n1=1;n1<=7;n1++)
{
n1_fact=1;
for(n2=1;n2<=n1;n2++)
{
n1_fact=n1_fact*n2;
}
ans=ans+(n1/n1_fact);
}
printf("Answer is %f",ans);
getch();
}
