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Python | sympy.binomial_coefficients() method

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With the help of sympy.binomial_coefficients() method, we can find binomial coefficients for a given integer. The method returns a dictionary containing pairs {(k1, k2) : C_kn} where C_kn are binomial coefficients and n=k1+k2.
Syntax: binomial_coefficients(n) Parameter: n – It denotes an integers. Returns: Returns a dictionary containing pairs (k1, k2) : Ckn where Ckn are binomial coefficients and n = k1 + k2.
Example #1:
# import binomial_coefficients() method from sympy
from sympy.ntheory import binomial_coefficients
  
n = 6
  
# Use binomial_coefficients() method 
binomial_coefficients_n = binomial_coefficients(n) 
      
print("binomial_coefficients({}) = {} ".format(n, binomial_coefficients_n))

                    
Output:
binomial_coefficients(6) = {(3, 3): 20, (1, 5): 6, (6, 0): 1, (0, 6): 1, (4, 2): 15, (5, 1): 6, (2, 4): 15}
Example #2:
# import binomial_coefficients() method from sympy
from sympy.ntheory import binomial_coefficients
  
n = 9
  
# Use binomial_coefficients() method 
binomial_coefficients_n = binomial_coefficients(n) 
      
print("binomial_coefficients({}) = {} ".format(n, binomial_coefficients_n))

                    
Output:
binomial_coefficients(9) = {(2, 7): 36, (9, 0): 1, (8, 1): 9, (5, 4): 126, (6, 3): 84, (4, 5): 126, (1, 8): 9, (3, 6): 84, (0, 9): 1, (7, 2): 36} 


Last Updated : 17 Sep, 2019
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