SymPy | Python中的 Permutation.rmul_with_af()

Permutation.rmul_with_af() ：rmul_with_af()是一个 sympy Python库函数，它返回排列的乘积，但 args 的元素是具有 _array_form 的 Permutation 对象。

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

Return : product of the permutation.

代码 #1：rmul_with_af() 示例

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

输出 ：

Permutation a – rmul_with_af form : (0 1 3 4 2 5)
Permutation b – rmul_with_af form : (0 2)(1 3)

代码 #2：rmul_with_af() 示例

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

输出 ：

Permutation a – rmul_with_af form : (0 3 5 6 1 2 4)