Program to calculate sum of series using for loop in C.

Code Box
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/*Program to calculate sum of series

 1/1!+1/2!+1/3!+.......+1/n!

 where n is the value entered by user.

 =>Explicit type conversion
 =>Nested loop
*/

#include<stdio.h>
#include<conio.h>
void main()
{
int i,n,j;
float sum,mul;
clrscr();
sum=0;


printf("\nEnter limit number : ");
scanf("%d",&n);


printf("\nSeries=");

printf("\n---------------------\n");

for(i=1;i<=n;i++)
{

mul=1;
printf(" +1/%d! ",i);

for(j=1;j<=i;j++)
{
mul=mul*j; //factorial
}

sum=sum+(float)1/mul;  //Explicit type conversion
}

printf("\n---------------------\n");

printf("\nSum of series= %.3f",sum);

getch();
}