Python 中的 SymPy | arrange.is_odd()
原文:https://www.geesforgeks.org/sympy-arrange-is_odd-in-python/
arrange.is_odd():is_odd()是一个 sympy Python 库函数，检查排列是否为奇数。
语法:sympy.combinations.arranges.arrange.is_odd()
返回:true–如果排列是奇数；否则为假
代码#1 : is_odd()示例
# Python code explaining
# SymPy.Permutation.is_odd()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from sympy.combinatorics.permutations.Permutation.is_odd() method
# creating Permutation
a = Permutation([[2, 0], [3, 1]])
b = Permutation([1, 3, 5, 4, 2, 0])
print ("Permutation a - is_odd form : ", a.is_odd)
print ("Permutation b - is_odd form : ", b.is_odd)
输出:
排列 a–是奇数形式:假 排列 b–是奇数形式:真
代码#2 : is_odd()示例–2D 置换
# Python code explaining
# SymPy.Permutation.is_odd()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from sympy.combinatorics.permutations.Permutation.is_odd() method
# creating Permutation
a = Permutation([[2, 4, 0],
[3, 1, 2],
[1, 5, 6]])
print ("Permutation a - is_odd form : ", a.is_odd)
输出:
排列 a–is_奇数形式:假
