SymPy | Permutation.runs() in Python

SymPy | Permutation.random() in Python

Last Updated : 27 Aug, 2019

Permutation.random() : random() is a sympy Python library function that returns the random permutation of length ‘n’.

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

Return : random permutation of length

Code #1 : random() Example

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

Output :

Permutation a – random form : (1)
Permutation b – random form : (4)

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

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

Output :

Permutation a – random form : (0 1 2 3)

SymPy | Permutation.runs() in Python

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