Merge pull request #749 from 2alin/adding-digit-of-exp-python

Added last digit of exp python script

Author: matthewsamuel95

Math/last_digit_exp/Python/LastDigitOfExp.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+def last_digit_of(a,b):
+    """ Calculates the last digit of a^b
+    Args: 
+        a (int): Base of a^b
+        b (int): Exponent of a^b
+    Returns:
+        (int): The last digit of a^b
+    """
+    
+    last_digit_a = int(str(a)[-1])
+    
+    if b % 4 == 0:
+        exp = 4
+    else:
+        exp = b % 4
+    
+    return (last_digit_a ** exp) % 10