Python 中的 SymPy | Subset.cardinality()
原文:https://www.geesforgeks.org/sympy-subset-cardinality-in-python/
subset.cardinality():cardinality()是一个 sympy Python 库函数，返回所有可能子集的数量。
语法: sympy.combinations.subset.subset.cardinality()
返回: 所有可能子集的数量
代码#1:基数()示例
# Python code explaining
# SymPy.Subset.cardinality()
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.subsets import Subset
# Using from
# sympy.combinatorics.subset.Subsets.cardinality()
# Creating Subset
a = Subset(['c', 'd'], ['geek', 'for', 'c', 'd'])
# cardinality value
print ("Subset a cardinality : ", a.cardinality)
输出:
子集 a 基数:16
代码#2:基数()示例
# Python code explaining
# SymPy.Subset.cardinality()
# importing SymPy libraries
from sympy.combinatorics import Permutation, Cycle
from sympy.combinatorics.subsets import Subset
# Using from
# sympy.combinatorics.subset.Subsets.cardinality()
# Creating Subset
a = Subset(['c', 'd'], ['23', 'c', 'd'])
# cardinality value
print ("Subset a cardinality : ", a.cardinality)
输出:
子集 a 基数:8
