SymPy | Subset.prev_gray() in Python Last Updated : 26 Aug, 2019 Comments Improve Suggest changes Like Article Like Report Subset.prev_gray() : prev_gray() is a sympy Python library function that returns the previous Gray code ordered subset. Syntax : sympy.combinatorics.subset.Subset.prev_gray() Return : the previous Gray code ordered subset. Code #1 : prev_gray() Example Python3 1=1 # Python code explaining # SymPy.Subset.prev_gray() # importing SymPy libraries from sympy.combinatorics import Permutation, Cycle from sympy.combinatorics.subsets import Subset # Using from # sympy.combinatorics.subset.Subsets.prev_gray() # Creating Subset a = Subset(['c', 'd'], ['geek', 'for', 'c', 'd']) # prev_gray value print ("Subset a prev_gray : ", a.prev_gray().subset) Output : Subset a prev_gray : ['d'] Code #2 : prev_gray() Example Python3 1=1 # Python code explaining # SymPy.Subset.prev_gray() # importing SymPy libraries from sympy.combinatorics import Permutation, Cycle from sympy.combinatorics.subsets import Subset # Using from # sympy.combinatorics.subset.Subsets.prev_gray() # Creating Subset a = Subset([2, 3, 4], [1, 2, 3, 4, 5]) # prev_gray value print ("Subset a prev_gray : ", a.prev_gray().subset) Output : Subset a prev_gray : [2, 3, 4, 5] Comment More infoAdvertise with us Next Article SymPy | Subset.prev_gray() in Python N noobestars101 Follow Improve Article Tags : Python Practice Tags : python Similar Reads SymPy | Subset.prev_binary() in Python Subset.prev_binary() : prev_binary() is a sympy Python library function that returns the previous binary ordered subset. Syntax : sympy.combinatorics.subset.Subset.prev_binary() Return : the previous binary ordered subset. Code #1 : prev_binary() Example Python3 1=1 # Python code explaining # SymPy. 1 min read SymPy | Subset.iterate_graycode() in Python Subset.iterate_graycode() : iterate_graycode() is a sympy Python library function that iterates over the k steps to get the respective Gray codes. Syntax : sympy.combinatorics.subset.Subset.iterate_graycode() Return : iterates over the k steps to get the respective Gray codes Code #1 : iterate_grayc 1 min read SymPy | Subset.rank_gray() in Python Subset.rank_gray() : rank_gray() is a sympy Python library function that returns the Gray code ranking of the subset. Syntax : sympy.combinatorics.subset.Subset.rank_gray() Return : Gray code ranking of the subset Code #1 : rank_gray() Example Python3 1=1 # Python code explaining # SymPy.Subset.rank 1 min read SymPy | Subset.unrank_gray() in Python Subset.unrank_gray() : unrank_gray() is a sympy Python library function that returns the Gray code ordered subset of the specified rank. Syntax : sympy.combinatorics.subset.Subset.unrank_gray() Return : the Gray code ordered subset of the specified rank. Code #1 : unrank_gray() Example Python3 1=1 # 1 min read SymPy | Subset.next_binary() in Python Subset.next_binary() : next_binary() is a sympy Python library function that returns the next binary ordered subset. Syntax : sympy.combinatorics.subset.Subset.next_binary() Return : the next binary ordered subset Code #1 : next_binary() Example Python3 1=1 # Python code explaining # SymPy.Subset.ne 1 min read Like