xkcd

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I really don't know where my computer is getting its language settings from. I know that some websites will stupidly use geoip databases to determine my language instead of just looking at the HTTP header that I specifically configured to request english. But local software? I install and configure ...

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But then by your account conditional probability is never usable[...] So the idea that I cannot account for every small factor means that I get to ignore the big factors without having to care about confidence or error bars? The point the video shows, correctly, is that the knowledge that at least ...

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*sigh* that's not how conditional probability works. Just like the endless misunderstandings of the monty hall problem, this one depends on a hidden question: What's making the frog croak? You gained some information, but how did you gain it, and how likely were you to gain exactly this information ...

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As for an explanation, Wikipedia explains the OSI model.

The comic is missing the cloudflare layer though.

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1 degree is about -25.56 dB. The units check out.

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Without rounding

With rounding

Hope this helps.

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Collins Scrabble Words 2015 (276,643 words) (not linking it here, apparently word lists can be copyrighted..) The largest component has 85,526 words. Everything else is in components with 100 or less. 44692 words have no neighbour at all; making it very tempting to sneak one of them into the word ga...

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The longest path problem is NP-hard. No good approximations are known. I wouldn't advise trying to solve this exactly on >100k nodes. Memory is not going to be a problem, but there's just too many possible paths to check them all. The good news is that we can place an upper bound k on the amount of ...

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To me that reads "initialize no members to a particular value" i.e. don't initialize anything. Why did the C people decide that all unlisted members in an initializer list should be zeroed? I wasn't part of that decision, but I can take a guess. An initializer list is not a shorthand for ...

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It would have performance impact on some code bases. You'd have to add a way to create uninitialized data for those that care. But there already is a compatible and standardized way to specify whether you want initialized or uninitialized memory for your struct. To create uninitialized data you wri...

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Your exact mailing address depends on the address format expected by your postal service. Name, Street, City, State, Country seems popular for classic parcel delivery, but I'm sure there are some delivery methods that prefer lat/lon coordinates. To satisfy your curiosity, the hierarchy beyond that i...

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The premise is a bit simplified. Wood is likely to split along the grain, and its strength depends a lot on the orientation of the wood and the type of force you apply. If you apply forces that the wood is weak against, then it'll often break along the grain instead of along a glued seam. For differ...

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That then raises the question of refining our definition of “creates more”—do we consider the creation of a small number N minds which then reproduce P offspring as being the same probability as the de novo creation of N+P minds? You don't calculate the chance of an organic brain appearing. You cal...

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This could be perfectly harmless, if your total average throughput matches what the disk supports. In a perfect world, network speed would adjust to disk speed, but several layers of buffers and queues may prevent that. IIRC there are a few procfs/sysctl knobs you can try to influence dirty page han...

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I have a few more recommendations that I have enjoyed with my partner. * Stardew Valley. It recently got a multiplayer update. * Heroes of Hammerwatch. Very fun roguelike dungeon crawler. * Victor Vran. Action RPG with an approachable combat system. Has a rather clicheed story but excellent storytel...

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Story time. I once bought a bunch of cheap DHT22 sensors to measure temperature and humidity at home. They're digital, "no calibration needed", yet no two sensors would agree on a value. IIRC the largest span was a difference of 10% humidity, which can be the difference between "you n...

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EDIT: completely unrelated, but in modern C++, what is the consensus on defining inline functions in header files: good practise or bad? .cpp file: "Eh, I guess a really smart compiler could still inline it" .h file: as inline "I trust the compiler to make a good choice. The linker w...

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The ABI's consistent If that is the case, then you'd expect v1 to be a symlink to v2, and you wouldn't have this trouble. If you wish to override a vendor-supplied binary, you can use LD_PRELOAD to make app use your system's v2. "foo" and "bar" are C (and we can compile both). H...

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my intuition tells me that "bad things" could happen. That is a reasonable default assumption. If you wish to dive into the inner workings of symbol resolution, read this: https://akkadia.org/drepper/dsohowto.pdf >> Are there two instances of "foo" loaded? Yes. Unless they're th...

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There are a bunch of nice css transforms, powerful enough to create a full animated 3d layout, if you like. When clicking somewhere, the browser will reverse those transforms, accurately determining which element was under the mouse pointer at the time of the event. At the same time, the browser wil...

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More can be added as needed, of course (-pthread always works with my preferred configuration, and I'm not going out of my way to test vastly different configurations until someone else hits a snag). That seems reasonable. If you take a closer look at that SO thread you linked, you'll notice that t...

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clang generally does not require -stdlib=libstdc++. That SO link is quite old, and the runtime error suggests that the then-recent version of libc++ simply lacked support. I think the autotools way would be to attempt different configurations until one compiles and works (starting with no parameters...

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Jose, if you really wish to make the point that string concatenation is fine for html creation, please start by implementing that clean() function that you keep using, such that it produces correct and safe html in any case. Multiple people have explained to you why that's problematic, but you've ig...

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Because $start+$middle+$end could contain a $middle that accidentally closes a tag in $start? Creating html via string concatenation is bad for the same reason that creating database queries with string concatenation is bad . One leads to XSS attacks, the other to sql injection. The same problem ex...

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On the topic of "making wrong code look wrong", the two things that look wrong when I read the article are: * using string concatenation to generate html * cleanup code outside of a destructor or finally block Clean code is a rather subjective and debatable thing, but in this case I'd rath...

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For reference: https://en.wikipedia.org/wiki/Three_Laws_of_Robotics As you'd expect, if you try to boil down a legal system into three simple statements, there will be loopholes. The three laws don't deal with conflicting human commands, they don't resolve all the moral dilemmas involving train trac...

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But if you looked at another planet and saw it was in a low entropy state, wouldn't your conclusion be that most likely life was on there? You snuck in a claim here, implying that earth has the lowest entropy of the planets in the solar system, because there's life on it. As far as I can see, our a...

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I'll ignore all the unrelated and unscientific drivel about gods for now.. I'm a bit burnt out right now so these are not the clearest thoughts, but it seems intuitively wrong to me that specifically a fully-formed brain having (illusory) experiences or memories of a universe like ours is more likel...

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If you want to draw it yourself, recursively printing each node and its children with indentation is easy, like sin / + * alpha 2 5 57.29577951308232 For some actual graphical output, use a library. My favorite tool for graph drawing is graphviz; it does have a javascript port. d3 is also popular. A...

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So i read the wikipedia page on boltzman brains, saying that self-aware observers are probably spontaneous fluctuations. If our universe is in thermal equilibrium, with any low-entropy structures arising as the result of random fluctuations, then most observers would be bolzmann brains. That's a bi...

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Did I do good? You're mixing std::endl with "\n". The standard does not guarantee those to be equal. It's not going to be portable to my upcoming operating system, which uses utf8 emojis instead of ASCII control characters or ANSI escape sequences. Otherwise, I see no portability issues. ...

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You know, OP requested C++, so why don't you post C++ solutions? #include <iostream> #include <stdexcept> // We need to model the positive integers in a portable and standard compliant way. // We chose to use Peano Numbers for the following reason: // * There are no overflows, hence there's no undef...

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A shell can only do very limited selection, because it isn't a terminal. It simply doesn't know (or care) what's on your screen at the moment. A shell can only copy parts of the current command line - and even bash can do that. It'll go into a bash-internal buffer though, so you cannot copy/paste be...

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Step 1) write down the requirements in a precise, mathematical notation Step 2) write the theorem down in a precise, mathematical notation Step 3) be understood. I think you're thinking about something that can be proven, but what you've written is ambiguous nonsense. The first step to tackle the pr...

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Contest Time! Write a one-line shell command (80 char or less) using all of grep, sed, and awk that actually does something recognizable. Prizes will be given on the basis of both style and output. Points taken off if the output is useful. Judges' determination of "useful" is final. Here'...

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One more point I wish to make. We've talked about the low-level details, but we also need to consider the proper top-down approach. This is based on a few year of experience developing games, and inheriting projects from other people developing games. MVC is a good thing. Even if you're just running...

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Disclaimer: good design is more of an art than a science, and anything that's not a technical requirement is highly subjective. Strive for consistency. First of all, Player::tackle(Player &) should cause the 'this' player to tackle the player passed via parameter, never the other way around. If...

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Is there any school of thought that says "Look, we currently have very-little-to-no idea what it is like inside a black hole, in physical reality, so the question is unverifiable either way and therefore meaningless." ? We have zero experimental evidence about the inside of a black hole, ...

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Errors coming from one module typically indicate a particular failure, usually handled by just waiting for a device controller (represented by mod_1_object) to auto-restart and trying again. "typically"? Is there an exception that cannot be handled by retrying? Exceptions for invalid argu...

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Also, you're supposed to put the BWT before your RLE. Why RLE first? bzip has two RLE steps. RLE -> BTW -> MTF -> RLE Both RLEs have different encodings and maximum run lengths. The first one is supposed to guard against worst-case inputs; due to its inefficient (but fast) encoding it will actually...

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