跳转至

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



回到顶部