友善|普鲁士人。tree_repr()用 Python
原文:https://www.geesforgeks.org/sympy-prufer-tree_repr-in-python/
Prufer.tree_repr():tree_repr()是一个 sympy Python 库函数，返回 Prufer 序列的树表示。
语法: 友好。组合者。普鲁士人。普鲁士人。tree_repr()
返回: 普鲁弗序列的树形表示
代码#1 : tree_repr()示例
# Python code explaining
# SymPy.Prufer.tree_repr()
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.prufer import Prufer
# Using from
# sympy.combinatorics.prufer.Prufer.tree_repr()
# Creating Prufer
a = Prufer([1, 2, 3], [2, 4, 5])
# tree_repr value
# rank = 2
# n = 5
print ("Prufer a tree_repr : ", a.tree_repr)
输出:
探测 tree_repr:[[0.1]、[1.2]、[2.3]、[3.4]]
代码#2 : tree_repr()示例
# Python code explaining
# SymPy.Prufer.tree_repr()
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.prufer import Prufer
# Using from
# sympy.combinatorics.prufer.Prufer.tree_repr()
# Creating Prufer
b = Prufer([1, 2, 3, 2, 4, 5], [6, 7], [8])
# tree_repr value
# rank = 2
# n = 5
print ("Prufer b tree_repr : ", b.tree_repr)
输出:
pruder b tree_repr:[[0.1]、[1.2]、[3.6]、[2.3]、[2.4]、[4.5]、[5.7]]
