2.7.5 Positive Definite Matrices & The Five Classes of Symmetric Matrix

This lecture is part of Chapter 2 (Linear Algebra) of the course "Deep Learning Mathematics and Theory".

In this lecture, Adam Dhalla explains how we can use the quadratic form of a matrix to classify symmetric matrices into five distinct classes, each with their own important properties. He also gives a geometric understanding of what the graphs of these matrices look like when put into quadratic form. By the end of this lecture you will have a good knowledge of Positive Definite and Positive Semidefinite matrices, as well as three other, less important types.

[malus]

Not only knowledgeable, but also able to simply explain the concepts also with humor! If you'll ever be a uni lecturer, you'll be many students' favourite haha