What are multidimensional arrays and how do I use them?

What are multidimensional arrays and how do I use them?

Multidimensional arrays are arrays of arrays, allowing you to store data in multiple dimensions. For example, a 2D array can represent a grid.

Can you give me an example of a 2D array in Python?

Sure! Here's a simple example:

matrix = [[1, 2, 3],
          [4, 5, 6],
          [7, 8, 9]]

This creates a 3x3 matrix.

How do I access elements in this 2D array?

You can access elements using their row and column indices. For example, matrix[0][1] will give you 2.

What about 3D arrays? How do they work?

3D arrays are like a stack of 2D arrays. You can visualize them as layers. In Python, you can create one like this:

array_3d = [[[1, 2], [3, 4]],
             [[5, 6], [7, 8]]]