Python Sympy Permutation.unrank_nonlex()用法及代碼示例

Permutation.unrank_nonlex()：unrank_nonlex()是一個sympy Python庫函數，它是一種線性時間取消排序算法，不遵循字典順序。

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

返回：線性時間排序。

代碼1：unrank_nonlex()示例

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

輸出：

Permutation a – unrank_nonlex form : (1)
Permutation b – unrank_nonlex form : (0)

代碼2：unrank_nonlex()示例

# Python code explaining 
# SymPy.Permutation.unrank_nonlex() 
  
# importing SymPy libraries 
from sympy.combinatorics.partitions import Partition 
from sympy.combinatorics.permutations import Permutation 
  
# Using from  
# sympy.combinatorics.permutations.Permutation.unrank_nonlex() method  
  
# creating Permutation 
a = Permutation([[2, 4, 0],  
                 [3, 1, 2], 
                 [1, 5, 6]]) 
  
  
print ("Permutation a - unrank_nonlex form : ", a.unrank_nonlex(2, 8))

輸出：

Permutation a – unrank_nonlex form : (0 1)

相關用法

注：本文由純淨天空篩選整理自noobestars101大神的英文原創作品 SymPy | Permutation.unrank_nonlex() in Python。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。