Readit NewsIsognoviastoma commented on A simple 16x16 dot animation from simple math rules tixy.land... · Posted by u/andrewrn
It's impressing that browser can display many levels of recursive iframe.
Isognoviastoma commented on Fixed-point arithmetic as a replacement for soft floats pigweed.dev/docs/blog/04-... · Posted by u/kaycebasques
> no square root, sin, and so on with rationals
Are you thinking about a specific library? You aren't the only person who commented this way. But, the truth is that root, sin and so on don't "work" with floats either. In fact, there are common ways to implement these functions by either using tables (which are approximate) or algebraic approximations (that give you... drum roll: rationals!)
But, really, there isn't any way (except symbolically) to represent transcendental functions in computers. It doesn't matter what kind of number you choose to do it.
√2 with floating point is obviously closest representable number. With fixed point it is obviously closest representable number as well. With rationals, you need to arbitrarily limit precision, and the point of using rational was to use exact values.
Isognoviastoma commented on Fixed-point arithmetic as a replacement for soft floats pigweed.dev/docs/blog/04-... · Posted by u/kaycebasques
What is the advantage of fixed point arithmetic over rational arithmetic? Rational arithmetic seems to include fixed point arithmetic as a subset (in fixed point arithmetic the denominator is always a power of the base).
- after few operations denominator exceeds 64-bit range, so you either need bigint, or make fractions approximate, what is in affect fixed point
- often you use decimal fraction on output and input anyway
- it's slower, even slower with bigint
- no square root, sin, and so on with rationals
Here is the content that is in the HTML but which the linked page refuses to actually show on the screen, instead opting for a "run javascript" message:
<meta content='Our university deployed a mail filter that rewrites URLs in emails to redirect them via a service that checks for bad websites. Somebody clever worked out that PGP-signed emails are exempt from the rewrite rule, so now people are starting their emails with "BEGIN PGP MESSAGE" even though they haven't used PGP at all, just to fool the filter
Anybody sending malware links has probably also worked out that trick by now, thereby rendering the entire filter pointless' name='description'>
Thanks for sharing! A bit of css, and it's possible to read mastodon posts with a web browser!
head {display:block; background:Canvas; color:CanvasText;}
meta[content] {display:block; padding-bottom:1em;}
meta[content]::after{content:attr(content); display:block;}Isognoviastoma commented on Ask HN: Any legal way against forced software upgrades and feature removal · Posted by u/djdule
Oh yeah? I tried Silverblue a couple years ago, and the Nvidia driver stopped working after a motherboard swap. I tried Kinoite but KDE Plasma's subpixel antialiasing looks terrible on HiDPI displays. Maybe that's some of the "convenience and polish" that you just have to sacrifice in order to use FOSS, but I could also just use software that's properly polished and not care whether it is FOSS or not.
And no, I'm not rebuilding my computer for linux, you would not be the first person to point out that I should replace my Nvidia GPU with an AMD one.
I will note though that GNOME is one of the nicest DEs I've ever used, at least back when graphics acceleration worked. Trackpads finally seem to be a first-class citizen, something Apple has already been doing for almost two decades (and, in fact, it's an Apple trackpad that works quite well with it).
Was nvidia driver foss or proprietary?
Isognoviastoma commented on Ask HN: Any legal way against forced software upgrades and feature removal · Posted by u/djdule
Calling it "more convenience and polish" is a bit of an understatement. My experience with open-source software is that if it breaks or it's missing a feature and you want your needs to be addressed then you will have to hack on it yourself. While this is great for people who enjoy hacking it's not great once you get bored of it.
I always enjoyed macOS (at least pre-Catalina) because it's Unix but without the requirement to constantly hack on the OS and userland like you have to do with Linux. That means I have all the development tools I appreciate but I can focus on what I actually want to do instead of fixing system-level bugs.
When Catalina came out I stopped updating so I can't speak for how the OS is nowadays.
With proprietary software, how many times a producer did fix breakage or add missing feature for you because you bought a licence (subscription)? How fast was it?
Isognoviastoma commented on Glove80 Ergonomic Keyboard danieldk.eu/Posts/2023-09... · Posted by u/JNRowe
I wonder if all those "ergonomic" designs really aim at the right corner of the solution space. What about targetted exercise of involved muscle groups and regular breaks to stretch and relax the tendons/joints/muscles/...?
I mean, with our societies sedentary life style, surely exacerbated by programmers sitting for 10+ hours a day, I'm a bit doubtful that moving even less is the answer. What about doing a few simple exercises regularly in breaks and evaluate? Obviously the standard Apple keyboard has terrible ergonomics, but something slightly more reasonable could already do the trick..
Keycap displays could be used to shuffle letters, thus prevent touch typing and force neck moves.
It is as silly as bogosort.
It's queue-sort. You put the elements into a priority queue, then remove them in property order and put them into a list.
Here you just use the inherent queue of a timer system, which wastes time between extracting the next element. That's silly and inefficient, and disingenuous in trying to hide the queue.
Chronosort is closer to radix sort, as both are O(n) if values are bounded. Queue-sort (aka heapsort) is O(n log n).
I don't know if 20% is correct, but I feel it's very close to it. I also think a lot of internet arguments happen as a direct result of miscommunication. Emojis are great, but they get abused to the point that HN filters them out. Perhaps allow readers to toggle if they want to see emojis or not?