Python 中的 SymPy | arrange.parity()
置换.奇偶() :奇偶()是一个 sympy Python 库函数，返回置换的奇偶。它意味着置换中逆序数的奇偶性。
语法:sympy.combinations .排列.置换.奇偶性()
返回:字典奇偶性中的下一个排列
代码#1:奇偶校验()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:
排列 a–奇偶形式:0 排列 b–奇偶形式:1
代码#2:奇偶校验()示例–2D 置换
# 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:
置换 a–奇偶形式:0
