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

Permutation.parity()：parity()是一个sympy Python库函数，它返回置换的奇偶校验。这意味着排列中反转数量的奇偶性。

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

返回：词典顺序的下一个排列

代码1：parity()示例

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

输出：

Permutation a – parity form : 0
Permutation b – parity form : 1

代码2：parity()示例– 2D排列

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

输出：

Permutation a – parity form : 0

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.parity() 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。