Python | SymPy Permutation.ascents() method
Permutation.ascents() : ascents() is a sympy Python library function that returns the position of ascents in the permutation.
Ascents are the elements where a[i] < a[i+1]
Syntax : sympy.combinatorics.permutations.Permutation.ascents()
Return : position of ascents in the permutation
Code #1 : ascents() Example
# Python code explaining # SymPy.ascents() # importing SymPy libraries from sympy.combinatorics.partitions import Partition from sympy.combinatorics.permutations import Permutation # Using from sympy.combinatorics.permutations.Permutation.ascents() method # creating Permutation a = Permutation([[2, 0], [3, 1]]) b = Permutation([1, 3, 5, 4, 2, 0]) print ("Permutation a - ascents form : ", a.ascents()) print ("Permutation b - ascents form : ", b.ascents()) |
Output :
Permutation a – ascents form : [0, 2] Permutation b – ascents form : [0, 1]
Code #2 : ascents() Example – 2D Permutation
# Python code explaining # SymPy.ascents() # importing SymPy libraries from sympy.combinatorics.partitions import Partition from sympy.combinatorics.permutations import Permutation # Using from sympy.combinatorics.permutations.Permutation.ascents() method # creating Permutation a = Permutation([[2, 4, 0], [3, 1, 2], [1, 5, 6]]) print ("Permutation a - ascents form : ", a.ascents()) |
Output :
Permutation a – ascents form : [1, 2, 4]
