Python Sympy Permutation.transpositions()用法及代码示例

Permutation.transpositions()：transpositions()是一个sympy Python库函数，它返回分解为换位列表的置换。始终可以将置换表示为换位的乘积。

用法： sympy.combinatorics.permutations.Permutation.transpositions()

返回：排列分解为换位列表

代码1：transpositions()示例

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

输出：

Permutation a – transpositions form : [(0, 2), (1, 3)]
Permutation b – transpositions form : [(0, 5), (0, 2), (0, 4), (0, 3), (0, 1)]

代码2：transpositions()示例

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

输出：

Permutation a – transpositions form : [(0, 4), (0, 2), (0, 1), (0, 6), (0, 5), (0, 3)]

相关用法

注：本文由纯净天空筛选整理自noobestars101大神的英文原创作品 SymPy | Permutation.transpositions() in Python。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。