set operations | union | intersection | difference | symmetric_difference python

In this video you will learn about various set operations like union, intesection, difference, symmetric_difference, proper subset, proper superset, subset, superset etc.

We can perform following operations on sets which are related to math :
• union(): The union() method is used to perform union operation on two sets. In union, elements of both sets are combined, having no duplicates. Instead of union() we can also use | operator.
Example:
avail_fruits={"apple","banana","grapes","mango","blueberry"}
other_fruits={"strawberry","blueberry","mango","litchie"}
fruits=avail_fruits.union(other_fruits)
print(fruits)
• intersection(): The intersection() method is used to perform intersection of two sets. In intersection only common elements are selected. Instead of intersection() we can also use & operator.
Example:
avail_fruits={"apple","banana","grapes","mango","blueberry"}
other_fruits={"strawberry","blueberry","mango","litchie"}
fruits=avail_fruits.intersection(other_fruits)
print(fruits)
• difference(): The difference function is used to find out difference between two sets. In difference only those elements of first set are selected which are not present in set2. We can also use – operator instead of difference() function.
avail_fruits={"apple","banana","grapes","mango","blueberry"}
other_fruits={"strawberry","blueberry","mango","litchie"}
fruits=avail_fruits.difference(other_fruits)
print(fruits)
• ^ operator : The ^ operators gives the elements which are in either s1 or in s2, but not in both. This is called symmetric_difference.
Example:
s1={10,20,30}
s2={10,20,40}
print(s1^s2)#30,40


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