> #include<iostream.h>
> #include<iomanip.h>
> long double main(void)
> {
> 	long double k=1.0;
>     long double e[10]={1.0};
> 	for(int i=0;i<10;i++)
> 	{
> 		k*=i+1;
> 		e[i+1]=e[i]+1/k;
> 	};
>    
> 	cout<<"n "<<"e"<<endl;
> 	cout<<"- -----------"<<endl;
> 	for(i=0;i<10;i++)
> 		cout<<i<<" "<<setprecision(10)<<e[i]<<endl;
> 	return 0.0;
> }