When sets are created, duplicates of elements are eliminated

#python #programming

Day 73 [November 18, 2025]

I need to buckle down, as I'm still lagging on day day 3 & 4 goals, "Day 3-4: Control structures (if-else, loops)", as well as day 5 (and 6) goals, "Day 5-6: Functions and modules", and Day 7 target (exercises) (Meta AI, personal communication, August 8, 2025). If I haven't covered this, I can't make progress on day 8 - 72 goals.

Goals:
As extracted from the 'Python for Software Development' textbook by Halvorsen (n.d.):

Plotting in Python ✅
Subplots✅
Exercises✅
If ... Else
Arrays
For Loops
Nested
For Loops
While Loops
Exercises
Creating Functions in Python - Introduction
Functions with multiple return values
Exercises
Creating Classes in Python
The init () Function
Exercises
Creating Python Modules
Exercises

Notes:
Python for Data Science, AI & Development Course (IBM) (Santarcangelo, n.d.):
Module 2: Python Data Structures

Lists and Tuples
Dictionaries
Sets

Sets:

A kind of collection, but unordered (that is, element position is not noted) and they only have one type of a given element in a set (that is, when sets are created duplicates of elements are eliminated, only one type of that particular element is left) (see also LabEx, n.d.).
To covert a list to a set, we use the set() function
Set operations include: .add method (to add new element), .remove method (to remove an element), in command used to check if an item is in a set, etc.
To get the intersection of two sets we use the ampersand (&) sign: setBlue & setRed
Union of sets combines all elements of the individual sets: setBlue.union(setRed)
.issubset method finds use in ascertaining if a particular set's elements are completely in another: setBlue.issubset(setRed)

Summary:
When sets are created, duplicates of elements are eliminated.

References: