Just another update

Task/Factorial/Elixir/factorial.elixir

@@ -0,0 +1,14 @@
+defmodule Factorial do
+  # Simple recursive function
+  def fac(0), do: 1
+  def fac(n) when n > 0, do: n * fac(n - 1)
+
+  # Tail recursive function
+  def fac_tail(n), do: fac_tail(n, 1)
+  def fac_tail(0, acc), do: acc
+  def fac_tail(n, acc) when n > 0, do: fac_tail(n - 1, acc * n)
+
+  # Using Enumeration features
+  def fac_reduce(0), do: 0
+  def fac_reduce(n) when n > 0, do: Enum.reduce(1..n, 1, &*/2)
+end