Mapytex/pymath/arithmetic.py

32 lines
575 B
Python

#!/usr/bin/env python
# encoding: utf-8
def gcd(a, b):
"""Compute gcd(a,b)
:param a: first number
:param b: second number
:returns: the gcd
"""
if a > b:
c = a % b
else:
c = b % a
if c == 0:
return min(a,b)
elif a == 1:
return b
elif b == 1:
return a
else:
return gcd(min(a,b), c)
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