SymPy | Python中的 Permutation.random()

Permutation.random() ：random()是一个 sympy Python库函数，它返回长度为“n”的随机排列。

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

Return : random permutation of length

代码 #1：random() 示例

# 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))

输出 ：

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

代码 #2：random() 示例– 2D 排列

# 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))

输出 ：

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