Arech

10 ms·

61.
by Arech 2y ago
Haha, man, I feel you :DD You probably should have started with it from the very beginning :D
62.
by Arech 2y ago
Can you please share more details about the loophole you've mentioned?
63.
by Arech 2y ago
Can you please also share more details, where I can read about this? Thanks!
64.
by Arech 2y ago
Can you maybe share more details, where I can read about this? Thanks!
65.
by Arech 2y ago
Plants eat radiation too, just with a bigger wavelength. So it's kinda photosynthesis on a roentgen-wavelength
66.
by Arech 2y ago
In enterprise you are almost always under a pressure to deliver something asap, so some bad practices are just a natural consequence of that. They could have liked to do it differently, but then they would only be half way to delivering wha
67.
by Arech 2y ago
It depends on what you're doing. Doubles are still slower than floats due to twice bigger requirements imposed on memory performance & cache size. So if you doing a "calculator" style of work, there's not much differ
68.
by Arech 2y ago
`#pragma once` isn't standardized. Even though all major modern compilers do support it (hopefully, but not guaranteed in the same way), if you care about portability to some not even very esoteric platform, it most likely uses ancient
69.
by Arech 2y ago
A practical example on C++14 & its constexpr+variable templates fixes, and why this was important: a while ago I wrote a wrapper over a compile-time fixed size array that imposed a variable compile-time fixed tensor layout on it. Basica
70.
by Arech 2y ago
There a whole bunch of features and fixes that each new version of the standard proclaimed, which severely affected usability, expressibility and convenience of the language. Describing many of them could easily take an hour. I'm sorry
71.
by Arech 2y ago
> stdlib changes is what most of "modern C++" is about). the last good version was basically C++11. I can only comment this like: tell me you have no idea about current state of C++ without telling me you have no idea about cur
72.
by Arech 3y ago
Much earlier than quantum mechanics, they are extremely useful in electrical engineering. And even before that (historically) - their 4D generalization, quaternions, are extremely useful to describe 3D rotations.
73.
by Arech 3y ago
That's what I was looking at in the very beginning. Here's how it unfolds: Grammar page ( https://github.com/tree-sitter/tree-sitter-cpp ) reference two documents at the very end: - Hyperlinked C++ BNF Grammar
74.
by Arech 3y ago
> The drones did not carry dosimeters to measure radiation because they had to be lightweight and maneuverable Weird claim. Devices such as RadiaCode 101 - 103 are highly portable and can also do gamma spectrometry with fantastic to its
75.
by Arech 3y ago
yes, exactly. Access/modification of a directly addressable byte is much faster than some bit of it. If I'm not mistaken, on Win32 `BOOL` data type is defined even worse to a 32bit int (this C API was devised way before `bool` has
76.
by Arech 3y ago
Yes, and for non-specialists it's enough to know that the paper isn't even peer reviewed yet, and not waste time on bla-bla-heavy clickbaity pop article..
77.
Pocket size gamma spectrometer [video](youtube.com)
4 points by Arech 3y ago|1 comments
78.
by Arech 3y ago
I had an old Radiacode 101 model and it's really awesome (bought it two years ago also after NurdRage's video on it). Wanted to share with some nerds here who never heard of it.
79.
by Arech 3y ago
> 1. in general, algorithms tend to slow down on small problems in exchange for the asymptotic speedup -- so you probably don't want to use this algorithm for anything that fits in memory (or perhaps the solar system) This is not ne
80.
by Arech 3y ago
Cool...probably... But am I the only one who can't read gray text on a gray background? I can't get past it...
81.
by Arech 3y ago
> Entr’Ouvert sued Orange in 2010 How such a simple thing could take 14 years to untangle? How could anyone trust in courts that have such a spectacular efficiency?
82.
by Arech 3y ago
My biggest concern is his "Optimizing software in C++" (Copyright © 2004 - 2023. Last updated 2023-07-01 - so it's claimed to be quite "fresh") [ https://agner.org/optimize/optimizing_cpp.pdf ]
83.
by Arech 3y ago
> Johnny’s Software Lab. Funny, I've just discovered them via a totally different route and read a few articles. Definitely good resource to learn more about low-level CPU code optimization. Though OP doesn't say what are they
84.
by Arech 3y ago
Definitely still useful, but some info, esp on some C++ things, is already outdated or even wrong. But still a good resource if approached with "trust but verify" mindset
85.
by Arech 3y ago
When I was a youngster in the nineties, I read Erich Maria Remarque's books and thought: "Wow! I'm so lucky the World has changed, people became smarter, more tolerant to each other, and none of this shit will even happen!&qu
86.
by Arech 3y ago
With our current, but especially decades ago capabilities, it's (was) similar to Russell's teapot problem.
87.
by Arech 3y ago
MOND was there years before Batygin (co-author of planet Nine hypothesis) was born.
88.
by Arech 3y ago
The first attempt https://explorer.globe.engineer/?q=Chemical+Reactions returned a whole load of SEO & marketing advertisement spam... Not what I expected. Close the tab & forget forever...
89.
by Arech 3y ago
even more than that - it's quite possible the one who did it too fast have just recalled most of it from his memory, but the other is likely to have found solution for himself from scratch, which is usually much more valuable. Even the
90.
by Arech 3y ago
These links points to basically a (very simplified UML) class diagrams. Decent documentation tools, such as Doxygen could do this for a codebase.

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