SymPy | Subset.cardinality() in Python

SymPy | Subset.next_gray() in Python

Last Updated : 26 Aug, 2019

Subset.next_gray() : next_gray() is a sympy Python library function that returns the next Gray code ordered subset.

Syntax :
sympy.combinatorics.subset.Subset.next_gray()

Return :
the next Gray code ordered subset

Code #1 : next_gray() Example

# Python code explaining 
# SymPy.Subset.next_gray() 
  
# importing SymPy libraries 
from sympy.combinatorics import Permutation, Cycle 
from sympy.combinatorics.subsets import Subset 
  
# Using from  
# sympy.combinatorics.subset.Subsets.next_gray() 
  
# Creating Subset 
a = Subset(['c', 'd'], ['geek', 'for', 'c', 'd']) 
  
# next_gray value 
print ("Subset a next_gray : ", a.next_gray().subset) 

Output :

Subset a next_gray : [‘c’]

Code #2 : next_gray() Example

# Python code explaining 
# SymPy.Subset.next_gray() 
  
# importing SymPy libraries 
from sympy.combinatorics import Permutation, Cycle 
from sympy.combinatorics.subsets import Subset 
  
# Using from  
# sympy.combinatorics.subset.Subsets.next_gray() 
  
# Creating Subset 
a = Subset(['k', 'd'], ['23', 'k', 'd']) 
  
# next_gray value 
print ("Subset a next_gray : ", a.next_gray().subset) 

Output :

Subset a next_gray : [‘k’]

SymPy | Subset.cardinality() in Python

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