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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



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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。