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Task/Van-der-Corput-sequence/FreeBASIC/van-der-corput-sequence.freebasic

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+' version 03-12-2016
+' compile with: fbc -s console
+
+Function num_base(number As ULongInt, _base_ As UInteger) As String
+
+    If _base_ > 9 Then
+        Print "base not handled by function"
+        Sleep 5000
+        Return ""
+    End If
+
+    Dim As ULongInt n
+    Dim As String ans
+
+    While number <> 0
+        n = number Mod _base_
+        ans = Str(n) + ans
+        number = number \ _base_
+    Wend
+
+    If ans = "" Then ans = "0"
+
+    Return "." + ans
+
+End Function
+
+' ------=< MAIN >=------
+
+Dim As ULong k, l
+For k = 2 To 5
+    Print "Base = "; k
+    For l = 0 To 12
+        Print left(num_base(l, k) + "      ",6);
+    Next
+    Print : print
+Next
+
+' empty keyboard buffer
+While Inkey <> "" : Wend
+Print : Print "hit any key to end program"
+Sleep
+End