Python | sympy.binomial() method
With the help of sympy.binomial() method, we can find the number of ways to choose k items from a set of n distinct items. It is also often written as nCk, and is pronounced “n choose k”.
(1) 
Syntax: binomial(N, K)
Parameters:
N – It denotes the number of items to choose from.
K – It denotes the number of items to choose.Returns: Returns the number of ways to choose K items from a set of N distinct items
Example #1:
# import sympy from sympy import * N = 4K = 2 print("N = {}, K = {}".format(N, K)) # Use sympy.binomial() method comb = binomial(N, K) print("N choose K : {}".format(comb)) |
Output:
N = 4, K = 2 N choose K : 6
Example #2:
# import sympy from sympy import * N, K = symbols('A B') print("N = {}, K = {}".format(N, K)) # Use sympy.binomial() method comb = binomial(N, K) print("N choose K : {}".format(comb)) |
Output:
N = A, K = B N choose K : binomial(A, B)
