3D Math - Quaternion code part 1

In this episode, I discuss code for quaternions. Notation, identity, negation, and rotation about an axis.
Concepts:

• Notation
• Axis-Angle Pair
• Negation
• Identity

Resources:

• Code / Slides: https://github.com/davidwparker/programmingtil-3d-math/tree/master/0049-code-quat-1
• Slides JS: https://github.com/hakimel/reveal.js/
• Math JS: https://www.mathjax.org/