Set( 집합) 연산

# -*- coding: utf-8 -*-
"""Day 2. Subset and it's operation

Automatically generated by Colaboratory.

Original file is located at
    https://colab.research.google.com/drive/1u5i1vUSuv3TEthCZRd0hamaVX5hjC9hv
"""
 
#Equlity
{0, 1} == {1, 0}
 
zero   = { 0   }
zero2  = { 0   }
zplus  = { 0, 1}
zminus = { 0,-1}
 
# Is Subset Operation       : <=
# Is Stric Subset Operation : <
 
zminus <= zplus
 
zero <= zplus
 
zplus < zminus
 
zero < zero2
 
zero <= zero2
 
zplus.issuperset( zero )
 
#####################################
############ UNION EXPRESSION #######
#####################################
 
 
A = { 1, 2 }
B = { 2, 3 }
 
## UNION
 
A | B
 
A.union(B)
 
## InterSection
A & B
 
A.intersection(B)
 
# difference
 
A - B
 
#### Symmetric difference => ( A - B ) | ( B - A )
A ^ B
 
A.symmetric_difference(B)
 
 

# -*- coding: utf-8 -*-
"""Day 2. Tuple And Cartesian Product.ipynb

Automatically generated by Colaboratory.

Original file is located at
    https://colab.research.google.com/drive/1-FY5vhqZ5T1-rkRbwQ2HgyGtBBbYtipu
"""
 
from itertools import product
 
faces = set ({ 'J', 'Q' , 'K'})
 
suit = set({ 'dia', 'spade'})
 
product(faces, suit)
 
for i in product(faces, suit):
    print(i)
 
 

# -*- coding: utf-8 -*-
"""Day 2.Cartesian Powers & Exponentials.ipynb

Automatically generated by Colaboratory.

Original file is located at
    https://colab.research.google.com/drive/19NVDNZd_exJ_fJf_LzefodVB-YAmlnWo
"""
 
import itertools
 
#Cartesian Powers & Exponentials
print(set(itertools.product({2, 5, 9}, repeat = 2)))