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Normally I'd just upvote and move on, but this is really fucking good. For example, I wish I could have seen something like that "Sine Wave Aliasing" page when
by streptomycin 12y ago
Normally I'd just upvote and move on, but this is really fucking good. For example, I wish I could have seen something like that "Sine Wave Aliasing" page when I was learning this stuff, would have saved me a lot of confusion.
- jackschaedler 12y agoThanks! Let me know if there are other topics you'd like covered, or areas that need more explanation.
- shorodei 12y agoAnother topic that has confounded me as much as FFTs are Quaternions.
- cbd1984 12y agoTake a look at geometric algebra. http://www.geometricalgebra.net/ http://www.geometricalgebra.net/ http://en.m.wikipedia.org/wiki/Geometric_algebra http://en.m.wikipedia.org/wiki/Geometric_algebra
- GFK_of_xmaspast 12y agoThat's not quite the same, but worth reading up on anyway.
- cbd1984 12y agoThe quaternions are a subalgebra of geometric algebra. It's not quite the same in that it's strictly more general and, therefore, more broadly applicable.
- malingo 12y agoI found this example by Steven Wittens to be remarkably well done: http://acko.net/blog/animate-your-way-to-glory-pt2/ http://acko.net/blog/animate-your-way-to-glory-pt2/ See the section "Blowing up the Death Star" and note that there are 100 parts total. "So that's quaternions, the magical rotation vectors."
- calebreach 12y agoThis is great! I'd love to see sections on convolution, the Dirac delta function, and the continuous (possibly multi-dimensional) Fourier transform.
- sbuccini 12y agoSeconded on convolution and the Dirac delta.