If you have any questions, please ask. I love yapping.
yap
Let's say we have some periodic function f. The goal is to represent it as a bunch of sine waves. This is called a Fourier series (FS).
The FS coefficients are given by
⌠2⋅π
1 ⎮ -i⋅k⋅x
f̂(k) = ─── ⎮ f(x)⋅e dx
2⋅π ⌡0
for whole numbers k. We can then approximate the original function with
n
___
╲ -i⋅k⋅x
╱ f̂(k)⋅e
‾‾‾
k = -n
and make the approximation better by making n larger.
For non-periodic functions, we can still get an approximation! The Fourier Transform (FT) uses a continuous range of frequencies instead of whole numbers, and the sum is replaced by an integral (the inverse FT).
FT's are used everywhere, for example in signal processing and spectroscopy. If a recording contains an annoying high-pitched noise, we can apply the FT and filter the unwanted frequencies. Spectroscopy separates light into its different wavelengths. By comparing the resulting spectral lines with known measurements, we can determine which elements and molecules are present in stars and planets, for example.
idk what more to add ._.
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As a reminder, please do not discuss current struggle sessions in the mega. We want this to be a little oasis for all of us and the best way to do that is not to feed into existing conflict on the site.
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traaaaaaannnnnnnnnns
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Who said we're doing that?
I’m just kind of trying to figure out a way to have a place where chasers don’t just pop in and post weird stuff about dicks and cis dudes don’t drop by to lecture folks about masculinity etc. It sounds like there’s a feature like that planned for a future lemmy version, so the real move may be to just wait it out.
afaik this has only happened twice in the trans mega (and i'm pretty positive those were a single wrecker that was posting weird struggle bait over the site on different accounts then deleting their accounts after a fair amount of engagement) and the mods acted swiftly to ban them once they were reported
i saw kristina and edie talking about it further along in the comments of this thread