Python | SymPy placement.get_邻接_矩阵()方法
原文:https://www.geesforgeks.org/python-sympy-置换-get_邻接_矩阵-method/
arrangement.get_邻接矩阵():get_邻接矩阵()是一个 sympy Python 库函数,计算自变量中置换的邻接矩阵。
语法: sympy.combinations .排列.置换. get_邻接_矩阵()
返回: 计算置换的邻接矩阵
代码# 1:get_邻接矩阵()示例
# Python code explaining
# SymPy.Permutation.get_adjacency_matrix()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from
# sympy.combinatorics.permutations.Permutation.get_adjacency_matrix() method
# creating Permutation
a = Permutation([2, 0, 3, 1, 5, 4])
b = Permutation([3, 1, 2, 5, 4, 0])
print ("a - get_adjacency_matrix : \n", a.get_adjacency_matrix())
print ("b - get_adjacency_matrix : \n", b.get_adjacency_matrix())
输出:
a–get_邻接_矩阵: 矩阵([[0,0,0,1,0,0], [0,0,0,0,0,1], [1,0,0,0,0,0], [0,1,0,0,0,0,0], [0,0,0,0,0,], [0,0,0,0,0,1,0])
b–get_邻接_矩阵: 矩阵([[0,0,0,0,0,0], [0,0,1,0,0,0], [0,0,0,0,0,1], [0,1,0,0,0,0,0], [1,0,0,0,0,0], [0,0,0,0,0,1,0]])
代码# 2:get_邻接矩阵()示例–2D 置换
# Python code explaining
# SymPy.Permutation.get_adjacency_matrix()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from
# sympy.combinatorics.permutations.Permutation.get_adjacency_matrix() method
# creating Permutation
a = Permutation([[2, 4, 0],
[7, 1, 3],
[8, 5, 6]])
b = Permutation([[8, 4, 0],
[2, 7, 0],
[1, 6, 7]])
print ("a get_adjacency_matrix : \n", a.get_adjacency_matrix())
print ("\nb get_adjacency_matrix : \n", b.get_adjacency_matrix())
输出:
一个 get_邻接_矩阵: 矩阵([[0,0,0,0,0,0,1,0,0], [0,0,0,0,0,0,0,], [0,0,0,1,0,0,0,0,0,], [0,0,0,0,0,0,1,0,0,0,0,], [0,0,0,0,0,0,0,0,1,0],【2】
b get_邻接_矩阵: 矩阵([[0,0,0,0,1,0,0,0,0], [0,0,0,1,0,0,0,0,0], [0,0,0,0,0,1,0,0,0], [0,0,1,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,],【0