Updated Tail Recursion example

maxburn · web-flow · commit 1fe33993cf45 · 2018-11-14T09:30:50.000-06:00
Updated Tail Recursion example to use 'n' in the function as defined by the signature. Before it was using 'x'.
diff --git a/fundamentals/recursion.md b/fundamentals/recursion.md
@@ -28,9 +28,9 @@ Tail recursion is where calculations are performed first and then the recursive
 
 ```python
 def factorial(n, running_total=1):
-	if x <= 1:
+	if n <= 1:
 		return running_total
-	return factorial(x-1, x * running_total)
+	return factorial(n-1, n * running_total)
 ```
 
 ## Practice Problems
