xelxebar

51 ms·

601.
Ask HN: What terminal emulator do you use and why?
1 points by xelxebar 8y ago|3 comments
602.
by xelxebar 8y ago
Unfortunately, I don't really have a satisfying answer for you. I've picked up most of what I know by haphazzardly putting together information in man files, Intel manuals, and probably bits acquired over time. That said, here&#x2
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by xelxebar 8y ago
In a similar vein, on the quest of understanding yet another abstraction layer deeper, I've been trying to get to grips with how linking/loading works by writing some ELFs by hand. Dynamic linking is giving me some problems though
604.
by xelxebar 8y ago
The blowup shown by Xia doesn't rely on point particles. It works just the same even for "small spheres". I didn't really make that clear. Your thought is in good company though. Lots of physicists over the years have wo
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by xelxebar 8y ago
> ...precise laws that conserve both matter and energy; therefore, nothing gets created and nothing gets destroyed... Not your main point but just wanted to point out that because of inflation, energy actually isn't conserved! It&#x
606.
by xelxebar 8y ago
To be fair though, even Newton's equations have flaws from a pure mathematical physics standpoint [0]. The problem is that certain classes of initial conditions produce infinities. The obvious case is for particle collisions, where gra
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by xelxebar 8y ago
> IEEEuler's identity I'm in stitches here. On a more serious note, is there a way to treat IEEE floats as some nice algebraic structure? I recently learned that associativity is broken, so I started thinking that it'd be
608.
by xelxebar 8y ago
I replied to GP, outlining a potential resolution. Thought you might like thinking about that kind of thing, so letting you know directly.
609.
by xelxebar 8y ago
It's not entirely incoherent, since time is relative to the geometry of spacetime and your trajectory through it. OP's original statement could be referring to the time coordianet in two separate frames of reference, so we might s
610.
by xelxebar 8y ago
If you're willing to dive in a bit, Matt Strassler has a nice blog aimed at the lay reader. His mini-series on the structure of the proton is quite excellent: https://profmattstrassler.com/articles-and-posts/largeh
611.
by xelxebar 8y ago
For a sine wave, the energy scales like E ∝α ω^2 where α is amplitude and ω is frequency. So lower frequencies need propotionally larger amplitudes to carry the same energy.
612.
by xelxebar 8y ago
Just ran across this series of blogs by John Baez and they kind of blew my mind. I had no idea classical physics was plagued by these pathologies. This has been posted here before, but not in a while, and they didn't get much attention
613.
Infinite Blowup in Newtonian Gravity: Struggles with the Continuum (2016)(johncarlosbaez.wordpress.com)
1 points by xelxebar 8y ago|2 comments
614.
by xelxebar 8y ago
Is that figure per model or per actual airplane? If the latter, 0.01% seems close to something I'd expect to actually see just by chance. If I understand correctly, that's the probability for 2 crashes within any span of 150 kilof
615.
by xelxebar 8y ago
One can certainly do fine by grepping ls output in one-off instances, but I'd be really hesitant to put that in a script. For given paths, stat command essentially lets us directly access their inode structs, and invocations are nicely
616.
by xelxebar 8y ago
Which is probably why it's hard to convince String Theory haters to re-evaluate their opinions, i.e. non-testable explanations. One, the claim that string theory makes no testable predictions is just plain false. The predictions are ju
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by xelxebar 8y ago
Strictly speaking, tmux is out of scope of the question, but I hope some people would be interested. I found myself needing to use deeply nested tmux sessions a few times and navigating between nestings is a huge pain under a vanilla setup.
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by xelxebar 8y ago
That's all quite easy to change in the rprompt() function. I tried hard to factor everything out, so the prompt content specification itself is clear and obvious. Basically, for the reasons you mention, I dislike having that info set i
619.
by xelxebar 8y ago
I like the ix.io pastebin, since it has a nice rest interface and the url is concise. I have a wrapper function that lets you run ix [<path>] and will sumbit the content of the supplied path, or stdin if no path is given. Her
620.
by xelxebar 8y ago
I use bash, but really like the RPROMPT idea from zsh, so mimick that as best as I can. It turns out that bash has a PROMPT_COMMAND variable which gets called before writing out PS1, so I use this to write my own rprompt. The main idea is j
621.
by xelxebar 8y ago
It seems this only really matters in function prototype declarations that contain multidimensional arrays. Compare: int foo(char [][*]); int bar(char [][]); The second declaration should give an error. I'm getting this fro
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by xelxebar 8y ago
If you trust the person to not be acting on malice, then I'd not worry too much about the precise semantics of those words and guess that the person is mainly expressing their frustration, hurt, etc . What about responding to that hon
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by xelxebar 8y ago
He recognizes vegetarianism as ethically good while also recognizing that pushing those personal ethics on others often results in a net bad. That's how I read it at least, and it sounds like a responsible way of handling personal valu
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by xelxebar 8y ago
This is amazing! You inspired me to get Dotsies on my Kindle. I've been wanting to read Cixin's "The Three-Body Problem", so this is the perfect opportunity. I'm also packaging the fonts up for Void Linux but was un
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by xelxebar 8y ago
For the same reason we teach and use Newtownian mechanics, even though it's "wrong".
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by xelxebar 8y ago
Just want to express my thanks as well. The final little challenge was my first successful foray into crafting a ROP payload. I found it thoroughly enjoyable and look forward to more of your stuff in the future!
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by xelxebar 8y ago
I dunno. It can just be that the intended audience is expected to know these terms already. It'd be weird to call any Nature paper an explainbrag simply because it uses field-specific terminology. Personally, when little things like th
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by xelxebar 8y ago
I just now spent about an hour reading the homepage's article that incrementally introduces dotsies characters. It went surprisingly smoothly and effortlessly, though my reading speed was fairly slow compared to normal. I'd say it
629.
by xelxebar 8y ago
There certainly are telescopes that capture images of objects so faint we have to wait long periods of time just to catch a few photons. This is enough to do some interesting astronomy, perhaps surprisingly. If you have a big enough telesco
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by xelxebar 8y ago
The problem is that a reproduction crisis, on its own, doesn't mean that a field is doing a bad job. With systems that involve lots of moving parts, the prior probability of finding a correct model is just dismally low. Bayes simply gu

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