Python Sympy Subset.cardinality()用法及代码示例

Subset.cardinality()：cardinality()是一个sympy Python库函数，它返回所有可能子集的数量。

用法：

sympy.combinatorics.subset.Subset.cardinality()

返回：
所有可能子集的数量

代码1：cardinality()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：

Subset a cardinality : 16

代码2：cardinality()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：

Subset a cardinality : 8

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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 | Subset.cardinality() 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。