SymPy | Permutation.length() in Python

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Permutation.length() : length() is a sympy Python library function that finds the number of integers moved by the permutation.

Syntax : sympy.combinatorics.permutations.Permutation.length()

Return : number of integers moved by the permutation

Code #1 : length() Example

# Python code explaining 
# SymPy.Permutation.length() 
  
# importing SymPy libraries 
from sympy.combinatorics.partitions import Partition 
from sympy.combinatorics.permutations import Permutation 
  
# Using from sympy.combinatorics.permutations.Permutation.length() method  
  
# creating Permutation 
a = Permutation([[2, 0], [3, 1]]) 
  
b = Permutation([1, 3, 5, 4, 2, 0]) 
  
  
print ("Permutation a - length form : ", a.length()) 
print ("Permutation b - length form : ", b.length()) 

Output :

Permutation a – length form : 4
Permutation b – length form : 6

Code #2 : length() Example – 2D Permutation

# Python code explaining 
# SymPy.Permutation.length() 
  
# importing SymPy libraries 
from sympy.combinatorics.partitions import Partition 
from sympy.combinatorics.permutations import Permutation 
  
# Using from sympy.combinatorics.permutations.Permutation.length() method  
  
# creating Permutation 
a = Permutation([[2, 4, 0],  
                 [3, 1, 2], 
                 [1, 5, 6]]) 
  
  
print ("Permutation a - length form : ", a.length()) 