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In this video, I make small improvements to the Matrix class for th upcoming neural network example. Those improvements are: static methods, a “print” method, and a “map” method.

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:
Static methods on MDN:

Videos mentioned in this video:
3Blue1Brown Neural Networks playlist:
3Blue1Brown’s Linear Algebra playlist:

Source Code for the all Video Lessons:

p5.js:
Processing:

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