好听|互换. mul_inv()用 Python
arrangement.mul_inv():mul_inv()是一个 sympy Python 库函数，返回 mul 逆 other*~self，self 和 other have _array_form。
语法:sympy.combinations.arranges.arrangement.mul_inv()
返回:mul 逆他者*~self，self 和 other 都有 _array_form。
代码#1 : mul_inv()示例
# Python code explaining
# SymPy.Permutation.mul_inv()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from
# sympy.combinatorics.permutations.Permutation.mul_inv() method
# creating Permutation
a = Permutation([[2, 0], [3, 1]])
b = Permutation([1, 3, 5, 4, 2, 0])
print ("Permutation a - mul_inv form : ", a.mul_inv(a))
print ("Permutation b - mul_inv form : ", b.mul_inv(b))
输出:
排列 a–mul_inv 形式:(3) 排列 b–mul_inv 形式:(5)
代码#2 : mul_inv()示例–2D 置换
# Python code explaining
# SymPy.Permutation.mul_inv()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from sympy.combinatorics.permutations.Permutation.mul_inv() method
# creating Permutation
a = Permutation([[2, 4, 0],
[3, 1, 2],
[1, 5, 6]])
print ("Permutation a - mul_inv form : ", a.mul_inv(a))
输出:
排列 a–mul_inv 形式:(6)
