Python 中的 SymPy | Subset.unrank_gray()
原文:https://www.geesforgeks.org/sympy-subset-unlank_gray-in-python/
subset.unrank_Gray():unrank_Gray()是一个 sympy Python 库函数，返回指定秩的格雷码有序子集。
语法: sympy.combinations.subset.subset.unlank_gray()
返回: 指定秩的格雷码有序子集。
代码# 1:unlank_gray()示例
# Python code explaining
# SymPy.Subset.unrank_gray()
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.subsets import Subset
# Using from
# sympy.combinatorics.subset.Subsets.unrank_gray()
# Creating Subset
a = Subset.unrank_gray(4, (['geek', 'for', 'c', 'd']))
# unrank_gray value
print ("Subset a unrank_gray : ", a.subset)
输出:
子集 a unrank_gray : ['代表'，' c']
代码# 2:unlank_gray()示例
# Python code explaining
# SymPy.Subset.unrank_gray()
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.subsets import Subset
# Using from
# sympy.combinatorics.subset.Subsets.unrank_gray()
# Creating Subset
a = Subset.unrank_gray(4, ([2, 3, 4]))
# unrank_gray value
print ("Subset a unrank_gray : ", a.subset)
输出:
子集 a unrank_gray : [2，3]
