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

Permutation.is_even()：is_even()是一個sympy Python庫函數，用於檢查排列是否為偶數。

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

返回：true –如果排列是偶數；否則為假

代碼1：is_even()示例

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

輸出：

Permutation a – is_even form : True
Permutation b – is_even form : False

代碼2：is_even()示例– 2D排列

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

輸出：

Permutation a – is_even form : True

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.is_even() 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。