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Fantastic Quaternions - Numberphile

30 videos recommended on HN
YouTube
3 HN users recommended this explainer3 months2016–2018 score 4
Years with an HN recommendation, 2007–2026

HN recommends it as the simplest, most approachable introduction to quaternions, useful for people working in games and robotics.

Numberphile's James Grime introduces quaternions, a type of number beyond the complex numbers, building up from real and complex numbers and explaining why they are useful.

“Numberphile's explanation of Quaternions is the simplest I have seen so far” (HN, 2018)

2 strong recommendations · 1 recommendations · Explainers · intro

3 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@skapadia Apr 2016 Strongly recommends
on HN thread Calculus Learning Guide
Kalid - also your explanation of complex numbers is absolutely amazing. Sure I could manipulate them by memorizing rules, but I never really knew what they meant or why they were important. I also love the Numberphile explanation of quaternions (building up from real to complex numbers, etc.) - [this video] -Sujan
Builds quaternions up from real and complex numbers.
@codesushi42 Sep 2018 Strongly recommends
on HN thread Quaternions: the Strange Numbers That Birthed Modern Algebra
Numberphile's explanation of Quaternions is the simplest I have seen so far: [this video] Quaternions are very important to know if you are doing any kind of 3D math. For instance, game programming or SLAM for robotics.
Simplest explanation of quaternions, useful for games and robotics.
@Tempest1981 Oct 2018 Recommends
on HN thread Visualizing quaternions: An explorable video series
This video might be easier to grasp: Fantastic Quaternions - Numberphile [this video] It also helped me to have a use-case in mind —- a motivation. Like maybe using the accelerometer/compasss in your phone to perform image stabilization or AR.
Easier-to-grasp introduction to quaternions.

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