Program to find the exponential series of 1+x+ x2/2! + x3/3! + ........ + xn/n! in C language

Generally the expansion for the exponential series is like above.

the C program for this is as below.

#include<stdio.h>

#include<math.h>

int fact(int f)

{

if(f>1)

return f*fact(f-1);

return 1;

}

void main()

{

int x,n,i,j;

float sum=1;

printf("Enter the 'x' value:\n");

scanf("%d",&x);

printf("\nEnter the 'n' value:\n");

scanf("%d",&n);

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

{

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

}

printf("\nSum of the series : %f ",sum);

}

Output: