Python SymPy Permutation.inversion_vector()用法及代碼示例

排列.inversion_vector()：inversion_vector()是一個sympy Python庫函數，它返回參數中排列的inversion_vector值。
反轉向量包括其值表示否的那些元素。排列中的元素是

用法：

sympy.combinatorics.permutations.Permutation.inversion_vector()

返回：
inversion_vector的排列值

代碼1：inversion_vector()示例

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

輸出：

Permutation a – inversion_vector form : [2, 2, 0]
Permutation b – inversion_vector form : [1, 2, 3, 2, 1]

代碼2：inversion_vector()示例– 2D排列

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

輸出：

Permutation a – inversion_vector form : [3, 2, 2, 2, 0, 1]

相關用法

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