ivan_ah

17 ms·

91.
by ivan_ah 6y ago
I use https://iriun.com on an old Android phone to get an "overhead projector" setup (to show hand written notes). (using USB connection not wifi; there is a bit of lag but works OK)
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by ivan_ah 6y ago
Updated link to traefik container config: https://github.com/rocdata/rocserver/blob/main/docker-compos... (link changed because only need SSL certs in prod -- so moved to a prod-specific docker-compose f
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by ivan_ah 6y ago
On a lighter note, and for anyone who hasn't seen cats on catnip in practice, check this out: https://www.youtube.com/watch?v=P0OB9p0zqx0
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by ivan_ah 6y ago
Direct link to research paper: [ The characteristic response of domestic cats to plant iridoids allows them to gain chemical defense against mosquitoes ] https://advances.sciencemag.org/content/7/4/eabd9135
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by ivan_ah 6y ago
Not sure if you needed PDF specifically, but this site has a lot of good OER textbooks, digitized nicely as HTML + MathJax: https://math.libretexts.org/Bookshelves
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by ivan_ah 6y ago
If y'all want to try a high-magic solution based on a single-host docker-compose setup with traefik 2+ as ingress, here is the paragraph for configuring Let's encrypt certs: https://github.com/rocdata/rocserve
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by ivan_ah 6y ago
Yeah float sort order field + some "DB maintenance" script seems like it would solve this. To be fair though, the scenario of inserting 38 items in a row in the same location (the fail mode of Approach 2) does sound like something
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by ivan_ah 6y ago
RE > "an official list of approved Lua libraries", which could be searched and that would provide information on the strengths and weaknesses of the library Perhaps something to emulate could be https://djangopackage
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by ivan_ah 6y ago
> [...] a video recording that you can stop/rewind. Heck, you can even take some proper notes that you will actually understand! You forgot to mention the most important thing -- the ability to change the playback speed to create th
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by ivan_ah 6y ago
Yeah working for yourself is a big trap to watch out for. I have fallen for it numerous times. The problem is when you're working for yourself (or a worthy non-commercial cause) work feels more fun and worthwhile, but the health damage
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by ivan_ah 6y ago
So it's a bit like a JSON schema, but with more fine grained checks? Very interesting.
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by ivan_ah 6y ago
Here is a short tutorial of the SymPy APIs that are relevant for high school math (equations, algebra, functions, etc.) and first-year university (mechanics/calculus/linear algebra): https://minireference.com/stati
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by ivan_ah 6y ago
+100 this; SymPy is the best! One of the coolest things about SymPy is the Live Shell, that let's you try basic calculations (without plotting) in the browser: https://live.sympy.org There is even an option to send the enti
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by ivan_ah 6y ago
The Python package `shortuuid` makes working with UUIDs a little easier by encoding them as strings: https://github.com/skorokithakis/shortuuid#usage (uses base-57 encoding, with alphabet consisting of A-Za-z0-9 with p
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by ivan_ah 6y ago
Yes, it has been a lot of fun working on these "basics" and double the fun since I was also translating the material to French, which forced me to really dig deeper and explain things properly[1]. I also worked on the concept maps
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by ivan_ah 6y ago
> If your level of mathematical competence is low, plan on raising it, [...] This makes me think for how many people basic math competence remains an obstacle for getting into science. Shameless plug for my new book about "basic mat
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by ivan_ah 6y ago
Direct link to Wikimapia https://wikimapia.org/ Highly recommended for looking around when you move to a new neighbourhood or city... I would say tourism, but that is NaT (not a thing) right now.
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by ivan_ah 6y ago
First four pars of intro for your convenience: Graphs have been used with great success as representations of probability models, both Bayesian and Markov networks as well as latent-variable neural networks. But in many applications, espec
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by ivan_ah 6y ago
I "write" a lot on my phone using a simple voice recorder app. It's a great way to put together intros, conclusions, and other "explainers" (obviously not so good for technical parts with equations or code). I usual
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by ivan_ah 6y ago
Exactly what I was thinking! I've used this computable-valye-but-overridable-with-explicit-value pattern a couple of times, and so long as you stick to a good naming convention it works great.
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by ivan_ah 6y ago
Xu Bing's book : https://publicdelivery.b-cdn.net/wp-content/uploads/2019/02/... and https://xubing.files.wordpress.com/2015/03/bookofthesky1.jpg
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by ivan_ah 6y ago
I found this to be very profound. Current economics paradigms are severely limited in scope by focussing only on "excludable goods" and may have little interesting to teach us about other forms of value preservation (e.g. protect
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by ivan_ah 6y ago
My guess would be > Seamless interop with React Native. Use core React Native components with Vue.js syntax out of the box
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by ivan_ah 6y ago
see also El Coloso by Francisco de Goya https://en.wikipedia.org/wiki/The_Colossus_(painting)
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by ivan_ah 6y ago
Displaying graph data in a user-friendly way is indeed a challenge. The nicest user interface I've seen is on metacademy "explore" views: https://metacademy.org/graphs/concepts/bayesian_logistic_reg.
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by ivan_ah 6y ago
This is really nice! Here is an attempt at fish port: function notifyme set MSG $argv[1] "Terminal is done" set TITLE $argv[2] "Done!" osascript -e "display notification \"$MSG[1]\" wit
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by ivan_ah 6y ago
I'm pretty proud of this `getvoicerecorder.sh` script that I use to pull .wav voice recordings from my phone, convert them to .mp3, and delete the originals from the phone memory (assuming you have Android Debug Bridge adb tool install
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by ivan_ah 6y ago
@StavrosK the code still very much WIP, but you can take a look at the links I posted on this issue: https://github.com/skorokithakis/shortuuid/issues/50 I'm making some choices very specific to my use
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by ivan_ah 6y ago
I came here to post about this! Thx a lot for this. It works great. Today I'm working on a custom `ShortUUIDField` (a subclass of Django's UUIDField) so I can stick to standard building blocks internally, but show sortuuids to use
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by ivan_ah 6y ago
> Part of your proofreading process should also be reading your posts aloud. My editor encouraged me to do this, and I was amazed at how effectively it catches careless errors and unnatural wording. A related writing hack for mac OS user

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