Python 中的 SymPy | arrange . support()

原文:https://www . geesforgeks . org/sympy-置换-python 中的支持/

replacement . support():support()是一个 sympy Python 库函数,返回 replacement 中的元素,P,为此 P[i]!= i。

语法:sympy . combinations .排列.置换. support()

返回:排列中的元素,P,为哪个 P[i]!= i。

代码#1:支持()示例

# Python code explaining
# SymPy.Permutation.support()

# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation

# Using from sympy.combinatorics.permutations.Permutation.support() method 

# creating Permutation
a = Permutation([[2, 0], [3, 1]])

b = Permutation([1, 3, 5, 4, 2, 0])

print ("Permutation a - support form : ", a.support())
print ("Permutation b - support form : ", b.support())

输出:

排列 a–支持形式:[0,1,2,3] 排列 b–支持形式:[0,1,2,3,4,5]

代码#2:支持()示例

# Python code explaining
# SymPy.Permutation.support()

# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation

# Using from 
# sympy.combinatorics.permutations.Permutation.support() method 

# creating Permutation
a = Permutation([[2, 4, 0], 
                 [3, 1, 2],
                 [1, 5, 6]])

print ("Permutation a - support form : ", a.support())

输出:

排列 a–支持形式:[0,1,2,3,4,5,6]