def choose(n, k):
""" n choose k
# example, say want to know ways to form committee of 3 students from 20 total students
>>> choose(20,3)
1140.0
"""
return factorial(n) / (factorial(k) * factorial(n - k))
def choose(n,k):
""" n choose k
# example, say want to know ways to form committee of 3 students from 20 total students
>>> choose(20,3)
1140.0
"""
return factorial(n) / (factorial(k)*factorial(n-k))
def test_factorial(self):
self.assertEqual(maths.factorial(5), 120)
def test_factorial(self):
self.assertEqual(maths.factorial(5), 120)
#!/usr/bin/env python
# system stuff
import sys
# local stuff
from pdapt_lib.machine_learning import maths
print('using python version = ')
print(sys.version)
print(maths.vector_add([1,1,1],[1,2,3]))
print("testing factorial: ", maths.factorial(1000))
print("testing factorial: ", maths.factorial(100))
