Improved Formatting and Style of Math Algos (#960)

* Improved Formatting and Style

I improved formatting and style to make PyLama happier.

Linters used:

- mccabe
- pep257
- pydocstyle
- pep8
- pycodestyle
- pyflakes
- pylint
- isort

* Create volume.py

This script calculates the volumes of various shapes.

* Delete lucasSeries.py

* Revert "Delete lucasSeries.py"

This reverts commit 64c19f7a6c8b74e15bed07f0f0337598a001ceb4.

* Update lucasSeries.py

maths/extended_euclidean_algorithm.py

@@ -1,20 +1,38 @@
+"""
+Extended Euclidean Algorithm.
+
+Finds 2 numbers a and b such that it satisfies
+the equation am + bn = gcd(m, n) (a.k.a Bezout's Identity)
+"""
+
 # @Author: S. Sharma <silentcat>
 # @Date:   2019-02-25T12:08:53-06:00
 # @Email:  silentcat@protonmail.com
-# @Last modified by:   silentcat
-# @Last modified time: 2019-02-26T07:07:38-06:00
+# @Last modified by:   PatOnTheBack
+# @Last modified time: 2019-07-05
 
 import sys
 
-# Finds 2 numbers a and b such that it satisfies
-# the equation am + bn = gcd(m, n) (a.k.a Bezout's Identity)
+
 def extended_euclidean_algorithm(m, n):
-    a = 0; aprime = 1; b = 1; bprime = 0
-    q = 0; r = 0
+    """
+    Extended Euclidean Algorithm.
+
+    Finds 2 numbers a and b such that it satisfies
+    the equation am + bn = gcd(m, n) (a.k.a Bezout's Identity)
+    """
+    a = 0
+    a_prime = 1
+    b = 1
+    b_prime = 0
+    q = 0
+    r = 0
     if m > n:
-        c = m; d = n
+        c = m
+        d = n
     else:
-        c = n; d = m
+        c = n
+        d = m
 
     while True:
         q = int(c / d)
@@ -24,22 +42,24 @@ def extended_euclidean_algorithm(m, n):
         c = d
         d = r
 
-        t = aprime
-        aprime = a
-        a = t - q*a
+        t = a_prime
+        a_prime = a
+        a = t - q * a
 
-        t = bprime
-        bprime = b
-        b = t - q*b
+        t = b_prime
+        b_prime = b
+        b = t - q * b
 
     pair = None
     if m > n:
-        pair = (a,b)
+        pair = (a, b)
     else:
-        pair = (b,a)
+        pair = (b, a)
     return pair
 
+
 def main():
+    """Call Extended Euclidean Algorithm."""
     if len(sys.argv) < 3:
         print('2 integer arguments required')
         exit(1)
@@ -47,5 +67,6 @@ def main():
     n = int(sys.argv[2])
     print(extended_euclidean_algorithm(m, n))
 
+
 if __name__ == '__main__':
     main()