lscharen

7 ms·

1.
by lscharen 3mo ago
> If you ask permission for spending, it's a very onerous and frustrating process. If you just deploy stuff and get billed for it, it's much easier! This point is underappreciated as it appears in many forms and can really help
2.
by lscharen 3mo ago
I’ve used Claude to help write development utilities to support my retro computing interests. The most complete tool being this unit testing support library for Apple IIgs assembly language development. https://www.npmjs.com&#x2F
3.
by lscharen 4mo ago
An interesting property of DAWGs is that the compact/compressed variation (CDAWG) can be built in linear time. https://moodle2.units.it/pluginfile.php/718375/mod_resource/...
4.
by lscharen 4mo ago
I was halfway through the article and began thinking that his described data structure sounded very familiar to something I used about 20 years ago. Sure enough, the first paragraph on the Wikipedia entry for DAFSA is: DAFSA is the redis
5.
by lscharen 7mo ago
An aside, but I recently learned -- if one is willing to use a very modest amount of memory -- summing floating-point numbers with no loss of precision is effectively a solved problem with the XSUM algorithm. https://glizen.com&#
6.
by lscharen 1y ago
> Notice I have changed the extension from .js to .mjs. Don’t worry, either extension can be used. And you are going to run into issues with either choice As someone that has used module systems from dojo to CommonsJS to AMD to ESM wit
7.
by lscharen 1y ago
I can see the point of trying to make a distinction, but it is muddy. An emulator can operate on many different levels of trying to match the behavior of the underlying hardware. CPU emulators can emulate at the opcode level (easier) or
8.
by lscharen 1y ago
The states decided to add one digit to these numbers to further subdivide them. They did it differently, of course, and some didn't subdivide at all. Some of them have typos with "O" in place of "0" in a fe
9.
by lscharen 1y ago
There are 8 screen hole bytes in the bottom 8 text rows (64 bytes total) and 8 expansions slots, so the screen hole byte at offset "N" was often used to store up to 8 bytes of data[1] (one byte in each of the rows' screen hol
10.
by lscharen 2y ago
I thought that SmoothLife was fascinating when I found it. At the time I was doing a lot of simulation work, so methods for bridging discrete and continuous domains were interesting. https://github.com/duckythescientist&#x2F
11.
by lscharen 2y ago
I just recently did a website conversion that used vite and took a look at both vitest and playwright. Ended up going with playwright for the “batteries included” browser support and because we use .Net Core for the backend. dotnet doesn’t
12.
by lscharen 2y ago
Reminds me of Intellectual Venture's Optical Fence developed to track and kill mosquitoes with short laser pulses. As a side-effect of the precision needed to spatially locate the mosquitoes, they could detect different wing beat frequ
13.
by lscharen 2y ago
I was not aware of this (2015) work -- very nice! A couple of pull-quotes from the paper to summarize: Much work has been done on trying to improve the accuracy of summation. Some methods aim to somewhat improve accuracy at little computat
14.
by lscharen 2y ago
Surprisingly there are different algorithms for doing something as simple as summing up a list of numbers. The naïve way of adding numbers one-by-one in a loop is an obvious way, but there are more sophisticated methods that give better bou
15.
by lscharen 2y ago
Agreed, the differences aren't as stark as the map seems. Almost all of the states fall between 15% and 25% percent of the population. Wisconsin stands out at 25.29% of the population labeled as excessive drinkers due to the large amo
16.
by lscharen 2y ago
This is giving strong "Using TDD to build a Sudoku solver" vibes[1]. Let's use some hot tools to solve a problem. Sorta solve a problem. Well, AI doesn't actually know abstract strategy, so maybe it'll work later w
17.
by lscharen 3y ago
> Also, I think some iPhone models have emergency satellite communications already, no? Yes, Emergency SOS. This was the feature that allowed a family to be located and rescued recently during the Hawaii fires. https://www.mac
18.
by lscharen 3y ago
This guy just (like a few weeks ago) started to put together a decentralized newsgroup toolset based on the NNTP protocol. https://dialup.cafe/@vga256/110609250159276517
19.
by lscharen 3y ago
This is similar the the (old) trick of adding a Uniform distribution component to a Mixture of Gaussians model. It doesn't really change the math wrt parameter optimization and probability evaluation, but provides a place to capture &
20.
by lscharen 4y ago
If SVB were originating mortgages then, yes, that should have helped because then, like every other originator, they would have immediately sold the mortgage into the secondary market where it would be turned into a Mortgage-Backed Securi
21.
by lscharen 4y ago
Esri’s Calcite Component library is another. https://github.com/Esri/calcite-components
22.
by lscharen 4y ago
That’s a great point. Seeing lots of mocks and assertions that certain functions are called is often much ado about nothing since no actual code functionality is exercised. I do sometimes see the return value functionality of mocks used as
23.
by lscharen 4y ago
I think even more so than “If I can put things eloquently enough, perhaps they'll understand why I did what I did.", it can be motivated as “I don’t think I’m a bad person and I didn’t intend to cause harm; if people are still mad
24.
by lscharen 4y ago
I mean, who didn’t?
25.
by lscharen 4y ago
We replaced a 25+ year-old propane furnace with a high-efficiency natural gas furnace two years ago. The difference in waste heat is astonishing. The old furnace vented through a vertical chimney vent and the exhaust was so hot that touchin
26.
by lscharen 4y ago
It was useful in single accumulator processor architectures since it could avoid one memory store.
27.
by lscharen 4y ago
Here’s a paper that explains how to derive that magic constant and others depending on what measure of error to minimize in the sqrt approximation. http://www.lomont.org/Math/Papers/2003/InvSqrt.pdf
28.
by lscharen 4y ago
CDAWGs. Compressed Directed Acyclic Word Graphs. They are like tries but share prefixes and suffixes of a word corpus, can be built in linear time, and since they are graphs, one can define an inner product between two CDAWGs and use them f
29.
by lscharen 4y ago
For more 16-bit 65816 context -- other than for space-savings, these instructions are never used when performance is needed due to the low effective throughput of 7 cycles per byte. A basic unrolled loop using 16-bit instructions is 20 - 3
30.
by lscharen 4y ago
Having done plenty of interviews, it's surprising how many candidates list every technology they may have touched for the briefest of moments. For me, "grilling" someone on something like a programming language is about de

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