jpfr

8 ms·

31.
by jpfr 3y ago
This article is about “solving” differential equations and not convex optimization.
32.
by jpfr 3y ago
> 3 clause BSD gives everyone permission to use it in new works that are made available using license terms of one’s own choosing, so long as the obligations of those 3 clauses continue to be met. But what I get from this is: The project
33.
by jpfr 3y ago
And this is why it is a bad idea for open source contributors to transfer their copyright. If hundreds of commits are baked into a software - under an open source license but without the full copyright transferred to a central legal entity
34.
by jpfr 3y ago
The address is scrambled (similar to a random-number generator) to produce the rank. So consecutive locations do not hurt performance.
35.
by jpfr 3y ago
Zip trees are great! For a project I made a version that uses the memory location of the entries to construct the (random) rank on the fly. So it’s a binary tree structure that requires the same memory as a linked list (two pointers) only!
36.
by jpfr 3y ago
The commit history looks pretty active... https://github.com/LuaJIT/LuaJIT/commits/v2.1/
37.
by jpfr 3y ago
AFAIK the IP deal with Microsoft only covers development before AGI . So at any point OpenAI could declare that a sufficient degree of AGI has been achieved and thus return to its philanthropic mission. With GPLed models and all. However,
38.
by jpfr 3y ago
Imagine how much worse the code would have been without all those rules. If people don’t have taste, no rules will get you to good code. Only a bit less worse / better predictable behavior.
39.
by jpfr 3y ago
I think the question assumed that you can run go in a script-language mode. Because you do want the source of shell-scripts on the local machine. So it is easy to make changes by system admins/non-developers. Scripting is for glue func
40.
by jpfr 3y ago
The recent 2023 version of MISRA C costs just a few pound as PDF. So I got it from $WORK. I don't have a lot of experience with the previous versions. But the 2023 version reads quite okay. It is not possible to mandate "though sh
41.
by jpfr 3y ago
Well, he surely isn't doing it for the money. The Moore Microprocessor Patent Portfolio was very lucrative. Eventually it ended up with a patent marketer. Nearly everyone doing processors had to buy in. And as the inventor Chuck got h
42.
by jpfr 3y ago
Yes! This is close the explanation I first encountered in Hubbard & Hubbard. One of the nicest math textbooks and going from zero up to differential forms. https://matrixeditions.com/5thUnifiedApproach.html
43.
by jpfr 3y ago
There are "bignum" implementations for every language. Though I never tested the performance impact on closed-form Fibonacci when a defined double precision >64bit is used. https://gmplib.org/ Your code has an
44.
by jpfr 3y ago
Well, you can also be a "tourist" as a German visiting Berlin. And be treated as such. I think speaking English in itself was never a problem to get in. But of course the tourist vibes get stronger if the person doesn't know
45.
by jpfr 3y ago
We pay 12 cent/kWh in France. Still a lot.
46.
by jpfr 3y ago
I have a heat pump that used 200 kWh of electricity in a single day! Granted, it was the coldest day of the winter. Is your house especially insulated to get that low?
47.
by jpfr 3y ago
Totally love the quest for elegant and minimal implementations. But I don't think line-counts are comparable across languages. The APL/K crowd has a very different opinion on the number of statements per line. To give an impressio
48.
by jpfr 3y ago
Nice. I recall there were .txt files in the filesystem where you could leave your name and a shoutout after completing a level. Mostly „Kilroy was here“ equivalents. But it felt oh so 1337 hacker to add yourself. Quite the motivation boost
49.
by jpfr 3y ago
I had the chance to visit „La Cite Radieuse“ in Marseille. All these years later it is still more stylish and … dare I say it … comfortable than all the apartment high-rises surrounding it. He designed it as a village inside a single buildi
50.
by jpfr 3y ago
You don‘t get funny points on technical topics. HN ain’t Reddit. ;-)
51.
by jpfr 3y ago
MSVC did a big rewrite of the C frontend around MSVC2013. I haven’t encountered C99 idioms that don’t work nowadays. Granted, I might not use every feature in my typical coding style…
52.
by jpfr 3y ago
The Taylor expansion locally fits a polynom based on the n first derivatives. If you want to find the "best" nth-degree polynom to approximate the sine function, functional analysis gives the tools for solving that optimization in
53.
by jpfr 3y ago
This is because you are measuring the entire cohort/generation of students. Germany splits students into highschool (called Gymnasium, the academic track) and the vocational tracks at age 10. Smart-kid highschool in Germany definitely
54.
by jpfr 3y ago
k and q are array languages in the APL tradition. APL is one the "ur programming languges". https://madhadron.com/programming/seven_ur_languages.html Here's an open source implementation of k: https:&#x
55.
by jpfr 3y ago
The ArtHoles episodes on Caravaggio are likewise superb. If you can stomach the bro-style presentation. The author conveys a much better picture on the circumstances at the time than typically dry textbooks or historical accounts. https:&#
56.
by jpfr 3y ago
Nice and tight. For comparison, this is the malloc/free implementation of the original UNIX. Also nice and tight C code. https://warsus.github.io/lions-/all.html#line2522 Although this isn’t very efficient for tod
57.
by jpfr 4y ago
So the 2 year old post by Jeff on discourse says that breaking changes would have to go into an eventual 2.0. Whereas in the 6 month old keynote the same Jeff says there is no plan for breaking changes and hence no 2.0 is planned. So Julia
58.
by jpfr 4y ago
I'm surpised. At JuliaCon ~6 months ago the message was that no 2.0 is in the works [1]. I.e. no backwards-incompatible changes to the language. I checked the usual places and did not find any information on 2.0 and an interface mechan
59.
by jpfr 4y ago
Linus Torvalds says that the RCU mechanism in the kernel making filesystem access lockless is one of the greatest achievements in Linux.
60.
by jpfr 4y ago
Shameless plug: I hold a lecture on "Optimization Methods for Machine Learning" that goes deep into convex optimization. Video recordings from the corona period (+ slides) are available here: https://www.youtube.com&#x2

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