Basic matrix operations form the backbone of quite a few statistical analyses—for example, neural networks. In this section, we will be covering some of the most used operations and functions on 2D arrays:

• Addition
• Multiplication by scalar
• Matrix arithmetic
• Matrix-matrix multiplication
• Matrix inversion
• Matrix transposition

In the following sections, we will look into the methods of implementing each of them in Python using SciPy/NumPy.