In this video, I move beyond the Simple Perceptron and discuss what happens when you build multiple layers of interconnected perceptrons (“fully-connected network”) for machine learning.

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This video is part of Chapter 10 of The Nature of Code (

This video is also part of session 4 of my Spring 2017 ITP “Intelligence and Learning” course (

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Links discussed in this video:
The Nature of Code:
Session 4 of Intelligence and Learning:
Perceptron on Wikipedia:
My Simple Artificial Neural Network JavaScript Library:
My video on AND and OR:
My video on Perceptrons:
kwichmann’s Learning XOR with a neural net:

Books discussed in this video:
Tariq Rashid’s Make Your Own Neural Network:
Marvin Minsky’s Perceptrons:

Source Code for the all Video Lessons:


The Nature of Code playlist:
For More Coding Challenges:
For More Intelligence and Learning:

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