# Deep Learning

## Contents

# Deep Learning#

## What is a neural network?#

*Excellent introduction to neural networks created by Grant Sanderson.*

What is a neural network? - Learn what are the neurons, why are there layers, and what is the math underlying it:

## How do networks learn?#

*Part 2 of the excellent introduction to neural networks created by Grant Sanderson.*

More on gradient descent and how neural networks learn:

## What is backpropagation?#

*Part 3 of the excellent introduction to neural networks created by Grant Sanderson.*

What is backpropagation: