C program to find E-series.


#include<stdio.h>
#include<conio.h>
void main()
{
float y,sum;
int a,n,i;
clrscr();
printf("Enter the y value");
scanf("%f",&y);
printf("\n Number of terms");
scanf("%d",&n);
  if(n==1)
  {
  sum=1;
  }
    else if(n==2)
   {
    sum=y+1;
   }
      else
      {
        a=1;
for(i=2;i<n;i++)
{
a=a*i;
sum=sum+pow(y,i)/a;
}
     }
printf("\n y value=%f",y);
printf("\n No of terms=%d",n);
printf("\n Eseries=%f",sum);
getch();
}

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