kogasa
@kogasa@programming.dev
- Comment on fuckery 3 days ago:
Yes, OP only gets you to Q[i]
- Comment on Infinite Suffering 4 weeks ago:
It can be, usually for college credit though
- Comment on Infinite Suffering 4 weeks ago:
At the universities I went to, Calc 2 was integration, sequences and series, then Calc 3 was multivariable. They really pack all the harder parts into 2.
- Comment on The return 1 month ago:
It’s called speed of lobsters
- Comment on mfw you're trying to take the Fourier Transform of a distribution 2 months ago:
It’s a reach, but the Fourier transformation of a Schwarz (rapidly decaying) function is also a Schwarz function. Compact support is a strictly stronger condition than Schwarz (the function must eventually decay to 0) but doesn’t have this nice property with respect to Fourier transforms, i.e. the FT of a compactly supported function is Schwarz but not necessarily compactly supported
- Comment on xkcd #2974: Storage Tanks 2 months ago:
I’m stuck on the homological algebra exercise
- Comment on Some bad code just broke a billion Windows machines 3 months ago:
This has nothing to do with Linux. Crowdstrike has in fact broken Linux installs in a fairly similar way before.
- Comment on Some bad code just broke a billion Windows machines 3 months ago:
Sure, throw people in jail who haven’t committed a crime, that’ll fix all kinds of systemic issues
- Comment on It's Wednesday, my dudes. 3 months ago:
Yes. A matrix is unitary if the conjugate transpose (conjugate as in “complex conjugate”) is equal to its inverse.
- Comment on Welp ... 4 months ago:
- Comment on Deadrop developer Midnight Society cuts ties with Dr Disrespect following new Twitch ban allegations 4 months ago:
Well, we knew he was a shitbag beforehand, so that’s not really what’s in question
- Comment on Cats 4 months ago:
It wouldn’t have been published, and he’s only relatively famous if you’re a topologist, but it was Charlie Frohman. Not that it must carry the same weight for you, but I value his insight highly, even if it’s just a quip.
- Comment on Science memes 4 months ago:
Yes, but it proves that termwise comparison with the harmonic series isn’t sufficient to tell if a series diverges.
- Comment on Science memes 4 months ago:
The assumption is that the size decreases geometrically, which is reasonable for this kind of self similarity. You can’t just say “less than harmonic” though, I mean 1/(2n) is “slower”.
- Comment on Cats 4 months ago:
Quoting a relatively famous mathematician, linear algebra is one of the few branches of math we’ve really truly understood. It’s very, very well behaved
- Comment on Irrational 4 months ago:
Google it? Axiomatic definition, dedekind cuts, cauchy sequences are the 3 typical ones and are provably equivalent.
- Comment on Irrational 4 months ago:
I’m fully aware of the definitions. I didn’t say the definition of irrationals was wrong. I said the definition of the reals is wrong. The statement about quantum mechanics is so vague as to be meaningless.
- Comment on Irrational 4 months ago:
That is not a definition of the real numbers, quantum physics says no such thing, and even if it did the conclusion is wrong
- Comment on Know who is king 4 months ago:
Only if you’re trying to get a numerical point evaluation. For example, one can use Fourier series to represent complex signals in terms of sine waves, and then reproduce the sine waves with hardware to reproduce the original signal.
- Comment on Time to fix sleep schedule 4 months ago:
What you have described is technology beyond the imagination of the men of my time
- Comment on Time to fix sleep schedule 5 months ago:
What century is it
- Comment on 🔔 SHAME 🔔 6 months ago:
Limits at infinity are one thing, but infinite ordinals are meaningfully used in set theory and logic
- Comment on 🔔 SHAME 🔔 6 months ago:
The question doesn’t make sense, there are many things which have an infinite quality (like infinite cardinality) or are called infinite/infinity (like infinite cardinals and ordinals). They’re not contradictory. They coexist the same as all finite things do.
- Comment on 🔔 SHAME 🔔 6 months ago:
I dunno about proving you wrong, but the fact that you can comfortably say there is no largest natural number is kind of a belief in infinity
- Comment on Advanced Maths 6 months ago:
Holomorphicity is equivalent to (or defined as) being differentiable in a nonempty, connected, open set, so it’s not asking much. Even then, functions which fail to be holomorphic can often be classified in a similarly rigid way.
- Comment on The ultimate choice 7 months ago:
It’s a perfect stick, it cannot break, look at it
- Comment on The ultimate choice 7 months ago:
I’ll take the stick and use it to make you give me the rock.
- Comment on Union, intersection, difference, and more are coming to JavaScript Sets 8 months ago:
Sets aren’t just for databases
- Comment on Google gets its way, bakes a user-tracking ad platform directly into Chrome 8 months ago:
It is better to switch to Firefox. But chromium forks can generally do whatever they want, it’s just a matter of maintenance burden. e.g. nothing is stopping a Chromium fork like Brave from running a manifest v2 compatible appstore, but it’ll cost money to make, maintain, and operate, plus you have less discoverability as an app developer when using a smaller app store.
- Comment on More believable for a Linux OS 8 months ago:
bullet_idx