From 4acecad41aeb6431dcf57abda073e184936acb6e Mon Sep 17 00:00:00 2001
From: Caleb Webber <caleb@codingthemsoftly.com>
Date: Thu, 6 Mar 2025 20:56:37 -0500
Subject: [PATCH] fix issue where calculating 0! never terminates

---
 lib/euler/algebra.ex | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/euler/algebra.ex b/lib/euler/algebra.ex
index e871898..cbe4aba 100644
--- a/lib/euler/algebra.ex
+++ b/lib/euler/algebra.ex
@@ -13,6 +13,8 @@ defmodule Euler.Algebra do
   @doc """
   Computes n!
   """
+  def fact(0), do: 1
+  def fact(1), do: 1
   def fact(n), do: fact(n - 1, n)
 
   defp digit_sum(0, acc), do: acc