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File 150448609042.jpg - (110.47KB , 1280x720 , mpv-shot0028.jpg )
1547 No. 1547 hide watch expand quickreply [Reply] [Edit] [Last 50 posts]
It doesn't matter if you're a beginner or Dennis Ritchie, come here to talk about what you are doing, your favorite language and all that stuff.
I've been learning python because c++ was too hard for me (I'm sorry nenecchi I failed to you), reached OOP and it feels weird compared to the latter one, anyway I never got it completely.
80 posts and 16 images omitted. Click Reply to view.
>> No. 2107 [Edit]
With C++20 most of the limitations with constexpr are fixed. (std::string and std::vector work now too.) There is also "constinit" and other new features. Read through them.
>> No. 2108 [Edit]
>LISP is slow
I hate this stigma that Lisp is somehow "slow" when it's absolutely not. SBCL can already produce images that are as fast, if not faster, than GCC if you can be clever enough. Now I will say writing Lisp to be as fast as C is a major pain, if you want to write fast code you should use Chicken (which lets you drop down into C at anytime) or just use C.
I think this idea of Lisp being slow comes from it being a LISt Processor where everything is a "linked" list, and that these lists have an O(n) access time. Honestly with today's machines (2000s and on), I would think that they're fast enough to compensate for this, not to mention that most dialects allow you to use vectors for when you're dealing with a truly large amount of data.
One more think I would like to add, that really gives Lisp the edge over most languages, is that programs are treated the same as regular data; that is programs can be manipulated just as regular data can. Long story short, Lisp machines, and Lisp instruction sets/architectures are near trivial to design and give the programmer, and user, some major benefits (not just speed). If you want to read more on this, I would suggest Guy Steele's paper "Design of LISP-based Processors".
>> No. 2109 [Edit]
SBCL is pretty amazing. You can see this quantitatively in [1] where Lisp is within an order of magnitude of C's performance. In fact a lot of people's ideas about "fast" languages are out of date. I've heard people call Java a "slow" language, but it's really quite performant (thanks to a lot of effort put into hotspot jit).

>> No. 2110 [Edit]
Thanks for the information. I had assumed that my toolchain was limited to C++17, but it seems GCC 10 is supported. Pretty excited to see how much of the pre-processor I can replace. The dream, however, is to convert the platform's system headers to D modules, and get GDC working. Don't know if I have the knowledge for the latter, though.

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2100 No. 2100 hide watch expand quickreply [Reply] [Edit]
I found a scary, but interesting toy.
Java Graphical Authorship Attribution Program
2 posts and 1 image omitted. Click Reply to view.
>> No. 2103 [Edit]
>deanonymize users
Stay safe.
Keep posts short.
>> No. 2104 [Edit]
Ironically, unless everyone does it you'll stick out the most. What would be neat is a technique that makes use of a GAN-sort of thing that will "normalize" any input you give it, making it impossible to distinguish different users. Maybe this already exists in the literature somewhere, but given that things like word-vectors and GPT already perform some sort of dimensionality reduction, there's probably a way to go from "input sentence" -> "sparse representation" -> "normalized input."

Unfortunately there's an inherent limitation/asymmetry in that no amount of normalization can remove distinguishing features based on content. For instance, if poster A talks about a specific technology a lot, and you come across someone mentioning that same technology on another board, there's a very high chance that you've run into poster A. And there's no way to normalize that since the content being talked about is inherently identifying.
>> No. 2105 [Edit]
Some Drexel students tried making something that could "anonymize" text input, but it doesn't use machine learning.
>> No. 2106 [Edit]
Hm it doesn't seem like it automatically does the anonymization yet. As of now it seems to just highlight the distinguishing features which the user can manually edit.

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165 No. 165 hide watch quickreply [Reply] [Edit] [First 100 posts] [Last 50 posts]
Need help with computers? Post your questions here.

ME-tan will do her best to help (with the help of other users, ofc).
330 posts and 46 images omitted. Click Reply to view.
>> No. 2059 [Edit]
For removing apps, if you're comfortable with the command line you can use adb to remove apps that the settings panel will not let you remove. I don't recall the exact command but something like "adb pm list" should list all apps by packade id, and then "adb pm -k" should allow you to remove it.

I'm not sure what exactly "system data" is comprised of here (I presume it includes the folders which cannot be read without root). If you have

If you had root access this might be easier to diagnose.
>> No. 2083 [Edit]
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What can be causing this in Pale Moon? I found someone had a similar problem and fixed it by clearing browser cache but it doesn't work. Clearing everything, disabling add-ons does nothing. It randomly goes back to normal for short periods then turns blank again for a couple of days. The site looks normal in Edge.
>> No. 2084 [Edit]
Pathfinder almost caused my PC to die. It crashed twice with a weird green screen, and the second time Windows couldn't start or complete the repairing mode. After one hour or so of trying it just worked for no reason at all. At the end my father was right when 20 years ago used to say videogames broke computers. It's such a pain to play anything these days.
>> No. 2086 [Edit]
I think pale moon doesn't support newer webshit technology like webcomponents [1], and perhaps additionally doesn't support newer javascript (well ecmascript) features. The fact that it's intermittent is probably because google is A/B testing something that relies on one of those.

I'd recommend you use an alternate youtube client like invidious.


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1280 No. 1280 hide watch expand quickreply [Reply] [Edit]
A bit late with this one, but whatever. To start off:
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>> No. 2078 [Edit]
Is there even a use for cryptocurrency and shitcoins other than speculative value? I guess the one valid reason is decentralized markets, but that alone can't be responsible for all the hype. Same thing with "blockchain" – neat in principle and as an academic exercise, but in practice 99% of the time a centralized database works fine. And surely the 1% of cases that truly need distributed proof of work can't be responsible for the millions in VC money sloshing around.
>> No. 2079 [Edit]
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Looks like the RIAA is trying to take down youtube-dl:
>> No. 2080 [Edit]
Fuck them. Do they really think people are mainly using youtube-dl to download webrips of shitty pop songs off youtube?
>> No. 2081 [Edit]

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2064 No. 2064 hide watch quickreply [Reply] [Edit]
... .
>> No. 2065 [Edit]
Care to elaborate? Because the first paragraph of your image is utter nonsense.
>> No. 2066 [Edit]
(for some reason can't edit, so apologies for double post).
Besides the conclusions that don't follow from the previous statements, you also have patently false statements such as "time is space" (while they're linked, sure, they're not interchangeable as clearly seen from the fact that the minkowski metric has a different sign for the time dimension than it does for space).
This seems more like the work of a crank than something substantive.
>> No. 2067 [Edit]
It helps to enter a password manually, the ones given tend to change on their own.
>> No. 2068 [Edit]
I think it's because I have cookies set to expire pretty aggressively, which invalidates the default generated password. I should probably write a userscript or something to automatically set the "postpassword" cookie to a fixed secret value.

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1813 No. 1813 hide watch expand quickreply [Reply] [Edit]
How do I get this?!?! I wanna have Miku sitting on my desktop like that!
My OS is linux ubuntu, by the way. I've been searching all over the internet but I can't find a way to install this!
7 posts omitted. Click Reply to view.
>> No. 1870 [Edit]
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it looks great but it segfaults when I try to open the settings menu on my machine and it's pretty much impossible to configure without it
>> No. 1871 [Edit]
Hm you might try compiling from source and see if that fixes it. Alternatively if there is indeed a bug you could try compiling with debug symbols if needed and stepping through with gdb (or just looking at the symbol dump) and seeing what's causing it to segfault.

Another option might just be to find where the preferences are stored (probably some dotfile in the home directory or near the binary path) and modifying that directly.
>> No. 1872 [Edit]
Actually I didn't check before posting because I thought the software died years ago but it got updated in June, my repos is lagging two versions behind. I compiled the new one the menu works fine now. According to dmesg it was a GTK problem.

Thanks anyways.
>> No. 2062 [Edit]
I had some linker errors trying to get this to build on Linux. Seems like some GCC defaults changed since this was working to disallow for some undefined behavior, which MaCoPiX needs to be patched for. In the meantime, it can be worked around using `make LDFLAGS=-Wl,--allow-multiple-definition` for the make step.

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2061 No. 2061 hide watch quickreply [Reply] [Edit]

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2047 No. 2047 hide watch quickreply [Reply] [Edit]
If you have to endure Microsoft shoving their whole fist up where the sun don't shine because your new-ish hardware either doesn't support Windows 7 or you're tired of worrying about operating systems and decided to just bite the bullet, here are a few things you ought to consider:

In the beginning, there was no reliable way to stop Microsoft's spying unless you somehow got your hands on a clean ISO for the LTSB/LTSC edition of Windows 10. Now there is, through a third party open source firewall called Simplewall. By default it comes with a list of IP addresses to block that Windows normally sends telemetry, keystrokes and other data to. Simply enable them in the blocklist.

Another project which aims to mitigate data collection as well as to debloat the system is a PowerShell script called Windows10Debloater which disables bloatware applications that have their own data collection, such as Cortana, the Microsoft Store and Edge. (Link:

After running these I managed to get zero networking utilization when I don't run any internet-connected tasks myself, something which was near impossible when running Windows 10 without these things. Keep in mind though that you will probably have to re-run the PS1 script after every major update since those tend to re-enable some if not all of the built-in crapware.

You can also defer Windows updates by setting Windows Update Service from Manual to Disabled in services.msc. To ensure that the Windows Update Service doesn't start without your permission since it can actually do that (believe it or not) you can open up gpedit.msc, then go to Computer Configuration > Administrative Templates > Windows Components > Windows Update > Configure Automatic Updates, and select Disable. This way, Windows will only update when you tell it to.

Yeah this is a lot of hoops to jump through but I think it's worth it to try to stop Windows 10 from just doing what it wants.
>> No. 2048 [Edit]
This is the most comprehensive guide I could find on manually removing things like cortana and other unwanted components without a script.

Post edited on 17th Jul 2020, 7:30am
>> No. 2049 [Edit]
I've been using LTSC. It's far from perfect, but it works.
>> No. 2050 [Edit]
Hey that's pretty good!

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1767 No. 1767 hide watch expand quickreply [Reply] [Edit]

I recently noticed that one could express a polynomial in terms of combinatorials and so I am curious as to how far one could go with this.

My requests are:
1) An expression of n^4 purely in terms of combinatorials
2) A method for finding these combinatorial-expressions
3) Clarity regarding what the term is for this field of study my question would fit into (if there is one)

I notice Pascal's triangle appears consistently (albeit with the rightmost '1' cut off) so perhaps, keeping the positive-negative alteration in mind, the n^4 combinatorial-expression is actually quite predictable but I have yet to test this and to be honest, I'd rather find a method than apply what I predict could be the cheat-sheet.
21 posts and 6 images omitted. Click Reply to view.
>> No. 2041 [Edit]
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Japanese university math is pretty advanced (relative to the equivalent in US).

Post edited on 2nd Jul 2020, 8:44pm
>> No. 2042 [Edit]
This just looks like sequences and (finite) series, though.
>> No. 2045 [Edit]
OP, you did well in asking if there was such a subject beforehand. Lately I was asking myself if there was something on sequences that are like arithmetical progressions, but with a different ratio between every number. I research deep in every possible related topic and couldn't find anything, even describing the problem didn't help. I ended up finding some formulas of my own, in the end, and was even going to post them here and ask about, but eventually I found they actually exist and are called quadratic sequences. There isn't a lot about them, though. The existing formulas are very different from the ones I made, and it appears that there are (as I suspected) even higher orders of magnitude, like cubic etc. What do you guys think of this whole thing?
>> No. 2046 [Edit]
I think you can just generalize everything by writing it as a recurrence relation. For a quadratic relation we know that we must have

d(n) = f(n+1) - f(n) = an + b, which implies that f(n+1) = f(n) + an + b.

Now for the particular case of quadratic sequences I think finding a general formula for the nth term is relatively straightforward because we know how to do sums of arithemtic sequences, so you can apply this to find d(1) + d(2) + ... + d(n) which immediately gives you a formula for what f(n+1) is. Same thing applies for "cubic sequences" as well and so on since we have nice closed form solutions for those.

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2036 No. 2036 hide watch quickreply [Reply] [Edit]
Why aren't dual screen laptops a thing?
>> No. 2037 [Edit]
It seems pointless and liable to break to me, just use a desktop or if you really need two screens on the move, use a tablet as the second screen. Having said all of this, I'm not a fan of two monitors in the first place and don't have two.
>> No. 2038 [Edit]
Hard to implement cleanly, since you'd probably have to double the thickness of the display part. Maybe with the new fancy paper-thin/foldable displays it's possible, but it doesn't make sense ergonomically since it'll be off-center.
>> No. 2039 [Edit]
>it'll be off-center
I've seen home made mods that have the screen fold out on top. Which places one of the screens at eye level, making for a more comfortable view.
>> No. 2040 [Edit]
That'd be neat! And the vertical real-estate would be very useful. Tangentially I don't know why almost all laptops are 16:9, even though 16:10 gives you that extra bit of valuable vertical space.

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1996 No. 1996 hide watch expand quickreply [Reply] [Edit]
Hello, this is not a shill post. So I decided to create my own chan in python as a hobby (using the flask library) and this is what I have come up with so far. Just give me feedbacks here in this thread or there.

Currently you can only upload jpeg , jpg , png , gif below the size of 4mb.

(IDK shit about frontend btw)
9 posts omitted. Click Reply to view.
>> No. 2020 [Edit]
Wouldn't a booru be better than an imageboard then?
>> No. 2021 [Edit]
Isn't a booru technically a type of imageboard?
>> No. 2022 [Edit]
You could say those are the real imageboards, and these places are message boards.
>> No. 2023 [Edit]
Boorus are more of a mass collection site with little to no quality control. I'm thinking of a place where people post the cream of the crop, not just dumping images for the sake of it but sharing things that hit all the right strokes for them. Maybe a scene in an anime which spoke to them, or a single piece of erotic art that they could get off to several times. Also, I'd like people to have discussion about those images, albeit with the stipulation that EVERY post would have to contain an image. I don't want something like 4/h/ where half the thread is people shitposting or arguing without posting anything.

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