Python Loops Tutorial

1. The for Loop

We start learning Python loops with the for loop. A for loop is used for iterating over a sequence. Let's go!

The first for Loop

Range() in a for Loop 1/2

Range() in a for Loop 2/2

List & for Loop

If/Else in a for Loop

Break/Continue in a for Loop

Pass, Else in a for Loop

Enumerate() in a for Loop

Challenge

2. The while Loop

With the while loop, we can execute a set of statements as long as a condition is true. We are going to work with this loop and handle different problems!

The First while Loop

Infinite Loop

List & while Loop

If/Else in a while Loop

Break/Continue in a while Loop

Pass, Else in a while Loop

3. Nested Loops

A nested loop is a loop inside a loop. Sound difficult? Don't worry! We will handle this loop!

First Nested Loop Pattern

Nested for Loop

Nested while Loop

While Loop inside a for Loop

If/Else in a Nested Loop

Break/Continue in a Nested Loop

Challenge

Nested for Loop

Let's delve into the world of matrices!

With the aid of a nested loop, we can manipulate matrices.

In mathematics, a matrix is a rectangular array or table of numbers, symbols, or expressions organized in rows and columns. It's used to represent a mathematical object or a characteristic of such an object.

In Python, a matrix is a data structure composed of nested lists.

The outer loop will handle the matrix's rows, while the inner loop will manage the columns, or vice versa.

Note
len(matrix) signifies the number of rows.
len(matrix[i]) represents the count of elements in a row (equivalent to the number of columns). Or vice versa.

Examine the code below:

How does this code work?

Завдання

You must calculate the sum of all elements within the matrix.

Initialize counter = 0.
Configure the outer for loop to iterate through the number of rows in the matrix.
Configure the inner for loop to iterate through the number of elements in each row of the matrix.
Accumulate the sum using the counter variable.
Display the value stored in the counter.

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Секція 3. Розділ 2

Python Loops Tutorial

Nested for Loop

Let's delve into the world of matrices!

With the aid of a nested loop, we can manipulate matrices.

In Python, a matrix is a data structure composed of nested lists.

The outer loop will handle the matrix's rows, while the inner loop will manage the columns, or vice versa.

Note
len(matrix) signifies the number of rows.
len(matrix[i]) represents the count of elements in a row (equivalent to the number of columns). Or vice versa.

Examine the code below:

How does this code work?

Завдання

You must calculate the sum of all elements within the matrix.

Initialize counter = 0.
Configure the outer for loop to iterate through the number of rows in the matrix.
Configure the inner for loop to iterate through the number of elements in each row of the matrix.
Accumulate the sum using the counter variable.
Display the value stored in the counter.

Все було зрозуміло?

Секція 3. Розділ 2