Python Sympy Permutation.rank_trotterjohnson()用法及代码示例

Permutation.rank_trotterjohnson()：rank_trotterjohnson()是一个sympy Python库函数，它返回非字典排列法的猪蹄johnson等级。

用法： sympy.combinatorics.permutations.Permutation.rank_trotterjohnson()

返回：字典顺序rank_trotterjohnson中的下一个排列

代码1：rank_trotterjohnson()示例

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

输出：

Permutation a – rank_trotterjohnson form : 10
Permutation b – rank_trotterjohnson form : 555

代码2：rank_trotterjohnson()示例– 2D排列

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

输出：

Permutation a – rank_trotterjohnson form : 2420

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注：本文由纯净天空筛选整理自noobestars101大神的英文原创作品 SymPy | Permutation.rank_trotterjohnson() in Python。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。