Prufer.next():next()是一個sympy Python庫函數,它返回的Prufer序列超出當前序列的增量。
用法:
sympy.combinatorics.Prufer.prufer.next()
返回:
Prufer序列超出當前序列的增量
代碼1:next()示例
# Python code explaining
# SymPy.Prufer.next()
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.prufer import Prufer
# Using from
# sympy.combinatorics.prufer.Prufer.next()
# Creating Prufer
a = Prufer([1, 2, 3], [2, 4, 5])
# next value
print ("Prufer a next : ", a.next(1))
輸出:
Prufer a next : Prufer([1, 2, 4])
代碼2:next()示例
# Python code explaining
# SymPy.Prufer.next()
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.prufer import Prufer
# Using from
# sympy.combinatorics.prufer.Prufer.next()
# Creating Prufer
b = Prufer([1, 2, 3, 2, 4, 5], [6, 7], [8])
# next value
print ("Prufer b next : ", b.next(1))
輸出:
Prufer b next : Prufer([1, 2, 3, 2, 4, 6])
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