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?