From 30c9176098283561bee7598eaaebe3019bd345cd Mon Sep 17 00:00:00 2001
From: Vitor Oliveira <vbrazo@gmail.com>
Date: Fri, 2 Apr 2021 11:22:53 -0700
Subject: [PATCH] minor changes

---
 .../{factorial_iterative.rb => factorial.rb}  | 25 +++++++++++--------
 1 file changed, 14 insertions(+), 11 deletions(-)
 rename maths/{factorial_iterative.rb => factorial.rb} (72%)

diff --git a/maths/factorial_iterative.rb b/maths/factorial.rb
similarity index 72%
rename from maths/factorial_iterative.rb
rename to maths/factorial.rb
index cc070b3..e83b347 100644
--- a/maths/factorial_iterative.rb
+++ b/maths/factorial.rb
@@ -4,18 +4,21 @@ Mathematical Explanation: The factorial of a number is the product of all the in
 i.e: n! = n*(n-1)*(n-2)......*2*1
 =end
 
+#
+# Approach: Interative
+#
+
 def factorial(n)
-    if n < 0
-        return nil
-    end
-    
-    fac = 1
-    while n > 0
-        fac = fac * n
-        n -= 1
-    end
-    
-    return fac
+  return nil if n < 0
+  
+  fac = 1
+
+  while n > 0
+    fac *= n
+    n -= 1
+  end
+  
+  fac
 end
 
 puts '4! = ' + factorial(4).to_s