12. Permutations and Combinations

• Permutations give the possible selections when order is important
• Combinations give the possible selections when order is not important

Permutations

import math

n = 4

k = 2

Permutations = math.factorial(n) / math.factorial(n-k) # Determine permutations

print(Permutations)

Combinations

n = 52

k = 2

Permutations = math.factorial(n) / math.factorial(n - k) # Determine Permutations

Combinations = Permutations / math.factorial(k) # Determine Combinations

print(Combinations)