> #include<iostream.h>
> #include<iomanip.h>
> #include<math.h>
> double a(int n)
> {    
> double m=1.00;
> double j=1.00;
> 	for(int i=1;i<=n;i++)
> 	{ j*=i;
>   m+=1/j;
> 	}
> 	return m;
> }
> void main()
> {
> cout<<"n e"<<endl<<"- -----------"<<endl;
> for(int i=0;i<=9;i++)
> cout<<i<<" "<<setprecision(10)<<a(i)<<endl;
> 
> }