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@henryseg just curious: do you know of any good introductions to quaternions for non-academics?

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@phooky For rotating things, or just the things themselves? (I think the answer is probably no in both cases...)

@phooky For rotating things, there are alternatives that are perhaps less confusing: marctenbosch.com/quaternions/

@henryseg for myself, i've been putting off learning about them (and thus understanding the general loathing of them) for literal decades, and was curious. I was mostly spurred by this toot thread, though:
mastodon.social/@joshmillard/1

@phooky @henryseg If you don't have a good handle on transformation matrices, I'd start there. Once you get how a 4x4 matrix can operate on 3D geometry, you can get a better handle on what quaternions are doing.

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