SymPy | Python中的 Permutation.is_Singleton()
Permutation.is_Singleton() :is_Singleton()是一个 sympy Python库函数,用于检查排列是否仅包含一个元素。
Syntax : sympy.combinatorics.permutations.Permutation.is_Singleton()
Return : true – if permutation is having only one element; otherwise false
代码 #1:is_Singleton() 示例
# Python code explaining
# SymPy.Permutation.is_Singleton()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from sympy.combinatorics.permutations.Permutation.is_Singleton() method
# creating Permutation
a = Permutation([[2, 0], [3, 1]])
b = Permutation([0])
print ("Permutation a - is_Singleton form : ", a.is_Singleton)
print ("Permutation b - is_Singleton form : ", b.is_Singleton)
输出 :
Permutation a – is_Singleton form : False
Permutation b – is_Singleton form : True
代码 #2:is_Singleton() 示例– 2D 排列
# Python code explaining
# SymPy.Permutation.is_Singleton()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from sympy.combinatorics.permutations.Permutation.is_Singleton() method
# creating Permutation
a = Permutation([[2, 4, 0],
[3, 1, 2],
[1, 5, 6]])
print ("Permutation a - is_Singleton form : ", a.is_Singleton)
输出 :
Permutation a – is_Singleton form : False