Write a C program to implement exponential series.

#include<stdio.h>

#include<math.h>

main()

{

float sum;

int i,n,x;

long int fact(int);

printf("\n\n\t\t SUMMATION OF EXPONENTIAL");

printf("\n\t\t *************************\n");

printf("\nINPUT:");

printf("\n*******");

printf("\n Enter the Value of x:\n");

scanf("%d",&x);

printf("\n Enter the Number of Term:\n");

scanf("%d",&n);

sum=1;

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

{

sum=sum+(pow(x,i)/fact(i));

}

printf("\nOUTPUT:");

 printf("\n******");

printf("\n Exp(x) value : %f\n",sum);

printf("\n Built in Function for Exp(x) : %f\n",exp(x));

getch();

}

long int fact(int n)

{

int i;

long int f=1;

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

f=f*i;

return(f);

}