Python Sympy Permutation.signature()用法及代碼示例

排列.signature()：signature()是一個sympy Python庫函數，它返回將排列的元素按規範順序放置所需的排列簽名。
簽名=(-1)^

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

返回：排列的簽名。

代碼1：signature()示例

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

輸出：

Permutation a – signature form : 1
Permutation b – signature form : -1

代碼2：signature()示例

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

輸出：

Permutation a – signature form : 1

相關用法

注：本文由純淨天空篩選整理自noobestars101大神的英文原創作品 SymPy | Permutation.signature() in Python。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。