Set Operations in Python programming

python

Python is a high-level Programming language used to communicate with system. It’s a oops oriented,interperted,platform independent language, making it versatile and widely used across different domains.

set

Introduction:

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A set is a built-in data structure in Python. It is an unordered collection of unique elements. Defined using curly braces {}.

# Example
set_1 = {2,3,4}
set_2={4, 5, 6}

Set Operations

• Union
• Intersection Difference
• Symmetric Difference
• Subset/Superset
• Disjoint

Representation Through Venn

Union

The union of two sets combines all elements without duplicates.

print(set_1|set_2)
print(set_1.union(set_2))
#output
#{2, 3, 4, 5, 6}
#{2, 3, 4, 5, 6}

Intersection

The intersection finds elements common to both sets.

print(set_1 & set_2)
print(set_1.intersection(set_2))

# Output
# {4}
# {4}

Difference

The difference shows elements in one set but not the other.

print(set_1 - set_2)
print(set_1.difference(set_2))

# Output
# {2, 3}
# {2, 3}

print(set_2 - set_1)
print(set_2.difference(set_1))

# Output
# {5, 6}
# {5, 6}

Symmetric Difference

The symmetric difference includes elements in either set but not both.

print(set_1 ^ set_2)
print(set_1.symmetric_difference(set_2))

# Output
# {2, 3, 5, 6}
# {2, 3, 5, 6}

Subset

Checks if all elements of one set are contained in another.

sub_set = {2, 3}
print(sub_set.issubset(set_1))

# Output
# True

Superset

Checks if a set contains all elements of another.

print(set_1.issuperset(small_set))

# Output
# True

Disjoint

Checks if two sets have no elements in common.

set_3 = {7, 8}
print(set_1.isdisjoint(set_3))

# Output
# True