SymPy | Python中的 Permutation.size()

Permutation.size() : size()是一个 sympy Python库函数，它返回排列中元素的数量。

Syntax : sympy.combinatorics.permutations.Permutation.size()

Return : number of elements in the permutation.

代码 #1：size() 示例

# Python code explaining
# SymPy.Permutation.size()
  
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
  
# Using from 
# sympy.combinatorics.permutations.Permutation.size() method 
  
# creating Permutation
a = Permutation([[2, 0], [3, 1]])
  
b = Permutation([1, 3, 5, 4, 2, 0])
  
  
print ("Permutation a - size form : ", a.size)
print ("Permutation b - size form : ", b.size)

输出 ：

Permutation a – size form : 4
Permutation b – size form : 6

代码 #2：size() 示例

# Python code explaining
# SymPy.Permutation.size()
  
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
  
# Using from 
# sympy.combinatorics.permutations.Permutation.size() method 
  
# creating Permutation
a = Permutation([[2, 4, 0], 
                 [3, 1, 2],
                 [1, 5, 6]])
  
  
print ("Permutation a - size form : ", a.size)

输出 ：

Permutation a – size form : 7