enriquto

26 ms·

481.
by enriquto 4y ago
> Getting fonts to render correctly is a difficult task. Only if you insist in blurry fonts. Rendering sharp bitmap fonts is trivial. With the microscopic pixels that we have nowadays, bitmap fonts have more sense than ever. Too bad t
482.
by enriquto 4y ago
Yes. It is the discrete analogue of spectral geometry on manifolds. A graph is a discrete manifold.
483.
by enriquto 4y ago
Both photography and image generation by computers are techniques that you can use in the ancient discipline of painting, aka "putting colors on a surface to produce a visual effect". Since its invention, photography has been a st
484.
by enriquto 4y ago
This is called "discrete exterior calculus" and you can find it easily. The idea is that k-forms are functions defined on the k-cliques of the graph. TFA is just the 1-dimensional case of this. The 2-dimensional case would be: 0-
485.
by enriquto 4y ago
> See as well Baez’s old issue of “This Week’s Finds” Well seen! TFA is certainly inspired by that very old Baez post, where he explained to Oz the many viewpoints of Fourier analysis. I was dismayed to see that all such viewpoints were
486.
by enriquto 4y ago
In standard C you have nextafterf(3) that gives the next float and allows to traverse them starting from 0: #include <math.h> // nextafterf #include <stdio.h> // printf int main() {
487.
by enriquto 4y ago
Sure, it's mostly a mnemonic. But you can do it easily in your head, even in infinite dimensions. For example, if you recall that (due to stokes theorem) the divergence is minus the transpose of the gradient, you can solve many varia
488.
by enriquto 4y ago
Or, equivalently, you can do the "engineer's trick": To solve an over-determined system Ax=b, where A is a rectangular matrix, you multiply both sides by Aᵀ. Thus you obtain a new system whose matrix AᵀA is square, and you
489.
by enriquto 4y ago
I guess there is no problem? You only need the gpu to compute fancy 3d graphics in high resolution. For normal terminal stuff and low resolution plots, anything should work.
490.
by enriquto 4y ago
This is incredible. It reminds me of d86, the best assembly debugger I used as a kid.
491.
by enriquto 4y ago
> without some kind of direct rendering going on, I can't see how this would work on a terminal emulator. Nah. You just dump the pixels one by one to the screen using a for loop. You can even do some cpu math with each pixel if you
492.
by enriquto 4y ago
> Is there much that absolutely can’t be ran on OpenBSD Virtual machines for non-openbsd guests? That's the only thing blocking me to fully move to openbsd.
493.
by enriquto 4y ago
You don't really need GPU acceleration for 2d graphics (and neither for simple 3D). The CPU is more than enough for that.
494.
by enriquto 4y ago
dest$ nc -l > file src$ nc $IP_DEST < file On some installs of netcat you'll need to specify a port because they don't have a default one (typically 31337). Look at the manpage to see what is the case for your
495.
by enriquto 4y ago
No, it is direct peer to peer. Thus both computers need to be connected at the same time. If you want async you need a third computer to store the data. It is a really elegant and ergonomic way to transfer files between computers. It doe
496.
by enriquto 4y ago
Don't kids these days know how to use netcat? You only need the other's ip. No need to involve a third party.
497.
by enriquto 4y ago
> Github can implement code search Sounds great! When are they going to do it?
498.
by enriquto 4y ago
Json is just hipster xml. Jq is just hipster xslt. Somebody should add a json entry to "the ascent of ward" [0]. Of course, it will be longer than all the previous versions combined, and the fields will appear in random order be
499.
by enriquto 4y ago
In GEOD, the author alternates freely between "the Duncan Idahos", "the Idahos" and (gasp) "the Duncans". I don't recall ever reading "the Duncans Idaho", but it would be cool.
500.
by enriquto 4y ago
> The actual representation doesn't much matter. This is a site for hackers. The actual representation is probably the only interesting point for many readers.
501.
by enriquto 4y ago
The alternative is to not track your visitors. Why would you want to? It's creepy.
502.
by enriquto 4y ago
Why does it need google tag manager? It seems unnecessarily invasive. The site should display the airport code, or the location, or at least the longitude/latitude coordinates. Thus if you find a cool airport you can know where it is
503.
by enriquto 4y ago
> Programming is so much easier now that we have this kind of tooling. Are you an Ent? What you mean by "now" may not be what most other sentient beings understand here... The program lint(1) was written in 1978, and the -W op
504.
by enriquto 4y ago
The culprits of this travesty must be named and shamed: Suing publishers: Hachette, HarperCollins, Penguin Random House, and Wiley. Judge: John G. Koeltl. Don't care about the judge, but there should be a massive campaign to boycott th
505.
by enriquto 4y ago
> I can't think of many more elegant ways to convert a list of ints to floats, in any language, than `[float(i) for i in integerlist]`. What about `float(integerlist)`
506.
by enriquto 4y ago
Yes, the class P is huge . Calling problems in P "easy" is severely misguided. We have only barely scratched the surface of this class (linear and quadratic problems), but there is an infinitely deep ocean of problems below the
507.
by enriquto 4y ago
It may be this: https://zonavideo.upc.edu/video/60a2a12ca5ad8c425e09912e (Lliçó inaugural Curs Poincaré (2003-2004), FME, UPC) I was there, but I don't recall it exactly like that... Maybe he gave another talk dur
508.
by enriquto 4y ago
> So is that like Abel... like the guy who Abelian groups are named after, or Abel from Abel and Cain? Heh. Who do you think a math prize would be named for? There are two first-rate great prizes in math, roughly equivalent in prestige
509.
by enriquto 4y ago
...showing again that the guardian is frivolous anti-intellectualism just like the daily mail. They would never name a sports player "the Caffarelli of that game".
510.
by enriquto 4y ago
Genius mathematician and an excellent expositor as well! One year, he was invited to give the inaugural lecture for undergraduate math in my university. The title of the talk was something like "four derivations of the heat equation&q

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