SymPy | Subset.rank_lexicographic() in Python

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Subset.rank_lexicographic() : rank_lexicographic() is a sympy Python library function that returns the lexicographic ranking of the subset.

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

Return :
the lexicographic ranking of the subset.

Code #1 : rank_lexicographic() Example

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

Output :

Subset a rank_lexicographic : 14

Code #2 : rank_lexicographic() Example

# Python code explaining 
# SymPy.Subset.rank_lexicographic() 
  
# importing SymPy libraries 
from sympy.combinatorics import Permutation, Cycle 
from sympy.combinatorics.subsets import Subset 
  
# Using from  
# sympy.combinatorics.subset.Subsets.rank_lexicographic() 
  
# Creating Subset 
a = Subset([2, 3, 4], [1, 2, 3, 4, 5]) 
  
# rank_lexicographic value 
print ("Subset a rank_lexicographic : ", a.rank_lexicographic) 