SymPy | Subset.prev_gray() in Python

SymPy | Subset.next_lexicographic() in Python

Last Updated : 26 Aug, 2019

Subset.next_lexicographic() : next_lexicographic() is a sympy Python library function that returns the next lexicographically ordered subset.

Syntax : sympy.combinatorics.subset.Subset.next_lexicographic() Return : the next lexicographically ordered subset

Code #1 : next_lexicographic() Example

Python3 1=1

# Python code explaining
# SymPy.Subset.next_lexicographic()

# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.subsets import Subset

# Using from 
# sympy.combinatorics.subset.Subsets.next_lexicographic()

# Creating Subset
a = Subset(['c', 'd'], ['geek', 'for', 'c', 'd'])

# next_lexicographic value
print ("Subset a next_lexicographic : ", a.next_lexicographic().subset)

Output :

Subset a next_lexicographic : ['d']

Code #2 : next_lexicographic() Example

Python3 1=1

# Python code explaining
# SymPy.Subset.next_lexicographic()

# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.subsets import Subset

# Using from 
# sympy.combinatorics.subset.Subsets.next_lexicographic()

# Creating Subset
a = Subset(['k', 'a'], ['23', 'k', 'a'])

# next_lexicographic value
print ("Subset a next_lexicographic : ", a.next_lexicographic().subset)

Output :

Subset a next_lexicographic : ['a']

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