Python 中的 SymPy | arrange . rank()
原文:https://www . geeksforgeeks . org/sympy-置换-rank-in-python/
arrange . rank():rank()是一个 sympy Python 库函数，返回排列的字典排序。
语法:sympy . combinations . arranges . arrange . rank()
返回:排列的字典顺序
代码#1:排名()示例
# Python code explaining
# SymPy.Permutation.rank()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from sympy.combinatorics.permutations.Permutation.rank() method
# creating Permutation
a = Permutation([[2, 0], [3, 1]])
b = Permutation([1, 3, 5, 4, 2, 0])
print ("Permutation a - rank form : ", a.rank())
print ("Permutation b - rank form : ", b.rank())
输出:
排列 a–排列形式:16 排列 b–排列形式:191
代码#2:秩()示例–2D 置换
# Python code explaining
# SymPy.Permutation.rank()
# importing SymPy libraries
from sympy.combinatorics.partitions import Partition
from sympy.combinatorics.permutations import Permutation
# Using from sympy.combinatorics.permutations.Permutation.rank() method
# creating Permutation
a = Permutation([[2, 4, 0],
[3, 1, 2],
[1, 5, 6]])
print ("Permutation a - rank form : ", a.rank())
输出:
排列 a-等级形式:2461
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