#AutoIt Version: 3.2.10.0
$n0 = 0
$n1 = 1
$n = 10
MsgBox (0,"Recursive Fibonacci ", rec_febo($n0,$n1,$n))
Func rec_febo($r_0,$r_1,$R)
   if  $R<3 Then
      if $R==2 Then
	 Return $r_1
      ElseIf $R==1 Then
	 Return $r_0
      ElseIf $R==0 Then
	 Return 0
      EndIf
      Return $R
   Else
      Return rec_febo($r_0,$r_1,$R-1) + rec_febo($r_0,$r_1,$R-2)
   EndIf
EndFunc