keithlfrost

9 ms·

1.
by keithlfrost 10mo ago
Elixir Livebook is my tool of choice for Advent of Code. The language is well-suited for the puzzles, I can write some Markdown if I need to record some algebra or my thought process, the notebook format serves as a REPL for instant code t
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Show HN: Generate Colorful Fractals in the Browser(keithfrost.github.io)
2 points by keithlfrost 1y ago|0 comments
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Frac5: A new type of flame fractal(keithfrost.github.io)
1 points by keithlfrost 1y ago|1 comments
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by keithlfrost 1y ago
I used Numerical Elixir to make a generate a new type of colorful fractal images.
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by keithlfrost 4y ago
This is a very sensible confusion. The forms of macroscopic averaging functions which are useful and valid cannot be made up arbitrarily, but are determined by the microscopic physical laws of the system. There is a reason that the law of
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by keithlfrost 5y ago
> Quantum fields make non-negligible contributions to the gravitational source in these models. That means that, for a fully consistent model, you need a theory of quantum gravity, which we don't have. Importantly, I don't thin
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by keithlfrost 6y ago
My current selection is https://contabo.com/en/vps
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by keithlfrost 6y ago
That should read as 60^2 - 1^2 -- the twos should be typeset as superscript.
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by keithlfrost 6y ago
Yes. I'm surprised the author would be more concerned about confusion between U/V (or u/v) than between 1/l ... the former has always seemed relatively far-fetched to me, whereas depending on the font, the latter can be
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by keithlfrost 6y ago
I have only one complaint about this Base32 encoding choice, and it stems from the fact that I prefer to encode Base32 using lower case letters, instead of the choice made here to make upper case canonical. When using lower case, the main
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by keithlfrost 6y ago
This is an excellent, and puzzling, question! Let me try to provide some insight into how physicists think about such paradoxes, by addressing the specific example you mention, of the presumed uncountable infinity of different possible pho
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by keithlfrost 6y ago
The English idiom is precisely "throwing out the baby with the bath water." So, as they say, you "hit the nail on the head."
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by keithlfrost 7y ago
This is clearly not true. If it were an effective means of getting accurate information, then there would be moral arguments for using it in some situations, to prevent even worse events (An imminent nuclear attack? Biological weapons atta
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by keithlfrost 7y ago
here here! okay, i'm going to reign this in.
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by keithlfrost 7y ago
Clojure allows one to start with essentially untyped code, then add type declarations for efficiency and safety.
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by keithlfrost 9y ago
That pocket looks rather like an anomaly in the data. There is a very large coal-fired power plant (Navajo Generating Station) near Page, Arizona, though.
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by keithlfrost 9y ago
One caveat regarding "Always put each migration into a database transaction": I've found that for very large database tables on a live system, it becomes impractical to e.g. create a new index inside a transaction, because th
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by keithlfrost 9y ago
agreed, except that in the last sentence you mean "transparent" not "opaque" (the atmosphere must be relatively transparent at a particular wavelength to allow radiant energy to escape to space at that wavelength).
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by keithlfrost 9y ago
No, I don't think so. Archimedes' principle tells us that the decrease in force required to support the object is equal to the weight of the displaced liquid. The force of gravity on the object itself is the same, regardless of
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by keithlfrost 9y ago
Amazon certainly has its share of problems and failures, but a lack of strategic financial thinking is not one of them. Take a look at the graph [1] of Amazon revenue and profit over time. Those curves are not generated by people who aren
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by keithlfrost 9y ago
Much simpler calendar has 364 = 13 * 28 days. 13 months of 28 days (EXACTLY 4 weeks) each. This one is so simple, it might be worth having 1-2 extra-calendar days per year, even with a 365.24... day year.
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by keithlfrost 9y ago
One tool for this is the 'comm' utility: given two files containing sorted lines, it can output one or more of (1) lines only in file 1, (2) lines only in file 2, and (3) lines common to both files.
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by keithlfrost 10y ago
On the other hand, using a 64 bit integer to count seconds moves the problem 292 billion years forward, and we can probably let the Omega Point handle it from there.
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by keithlfrost 10y ago
Note that Amazon is not on your list. They did not adopt the mono-repo approach. Their tools have their own advantages and disadvantages, to be sure, but mono-repo is not the only way.
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by keithlfrost 10y ago
arxiv preprint of original paper here: https://arxiv.org/abs/1407.4437
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by keithlfrost 10y ago
not quite true... big bang nucleosynthesis is believed to have created substantial amounts of helium and lithium, in addition to primordial hydrogen.
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by keithlfrost 10y ago
uh... yes, yes it is. see for example http://mathworld.wolfram.com/HyperspherePointPicking.html