C :

#include<stdio.h>
int main()
{
     float i,j=1;
	 float s=0;
     for(i=1;i<=10;i++)
     { 
           j*=i;
           s+=(float)(1/j);
     }
     printf("%.5f\n",s);
     return 0;
}

C++ :

#include<iostream>
using namespace std;
int main()
{
  float a=1,s=0;
  for(int i=1;i<=10;++i)
  {
    a*=1.0/i;
    s+=a;
  }
  printf("%0.5lf\n",s);
  return 0;
}

Pascal :

var h:integer;b:real;
function p(a:integer):real;
  var
   s:real;
   m,n,j,k,i:longint;
  begin
   for i:=1 to 10 do
    begin
     n:=1;
      for j:=1 to i do
       n:=n*j;
       s:=s+1/n;
     end;
     p:=s;
  end;

  begin
   h:=10;
   b:=p(h);
   write(b:0:5);
  end.