SymPy | Permutation.unrank_trotterjohnson() in Python
Permutation.unrank_trotterjohnson() : unrank_trotterjohnson() is a sympy Python library function that returns the Trotter Johnson permutation unranking
Syntax : sympy.combinatorics.permutations.Permutation.unrank_trotterjohnson()
Return : Trotter Johnson permutation unranking
Code #1 : unrank_trotterjohnson() Example
# Python code explaining # SymPy.Permutation.unrank_trotterjohnson()   # importing SymPy libraries from sympy.combinatorics.partitions import Partition from sympy.combinatorics.permutations import Permutation   # Using from sympy.combinatorics.permutations.Permutation.unrank_trotterjohnson() method   # creating Permutation a = Permutation([[2, 0], [3, 1]])   b = Permutation([1, 3, 5, 4, 2, 0])   size = 3  rank = 5  print ("Permutation a - unrank_trotterjohnson form : ", a.unrank_trotterjohnson(size, rank)) print ("Permutation b - unrank_trotterjohnson form : ", b.unrank_trotterjohnson(5, rank)) |
Output :
Permutation a – unrank_trotterjohnson form : (2)(0 1)
Permutation b – unrank_trotterjohnson form : (0 4 2 1)
Code #2 : unrank_trotterjohnson() Example
# Python code explaining # SymPy.Permutation.unrank_trotterjohnson()   # importing SymPy libraries from sympy.combinatorics.partitions import Partition from sympy.combinatorics.permutations import Permutation   # Using from # sympy.combinatorics.permutations.Permutation.unrank_trotterjohnson() method   # creating Permutation a = Permutation([[2, 4, 0],                  [3, 1, 2],                  [1, 5, 6]])     print ("Permutation a - unrank_trotterjohnson form : ", a.unrank_trotterjohnson(4, 8)) |
Output :
Permutation a – unrank_trotterjohnson form : (3)(0 2 1)
