Program to calculate the exponential series Using C

# include <stdio.h>
# include <conio.h>

void main()
{
int i, n, exp;
float x, sum = 1, t = 1 ;
clrscr() ;
printf("Enter the value for x : ") ;
scanf("%f", &x) ;
printf("\nEnter the value for n : ") ;
scanf("%d", &n) ;
for(i = 1 ; i < n + 1 ; i++)
{
exp = i ;
t = t * x / exp ;
sum = sum + t ;
}
printf("\nExponential Value of %f is : %8.4f", x, sum) ;
getch() ;
}

RUN 1 :
~~~~~~~
Enter the value for x : 2
Enter the value for n : 20
Exponential Value of 2.000000 is : 7.3891