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Here's some simple working code using tkinter and pillow - it's not mega-fast but works correctly. The speed is comparable to pygame. https://gist.github.com/nathanielvirgo/d74ebef1462c68b2e0d6539a9e48e9e2 …https://twitter.com/NathanielVirgo/status/1224568562880114688 …
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that Stack Exchange answer with pyglet code. It probably works if you're not on a mac.https://stackoverflow.com/a/54428173/1119340 …
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Pygame for comparison - same problem, just not as bad. Next I will test the matplotlib solutions, but I'm not expecting them to be sufficiently fast, so my expectation is that I'll need to hack my own OpenGL solution. I'll put it on github if I do.pic.twitter.com/jJDALfn85r
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After quite some digging I have been able to get Pyglet to blit a numpy array to the screen. (I used the code in the Stack Overflow answer below.) However, it seems it's even more fundamentally broken than pygame on a retina display. The below image should have only 2 colours.pic.twitter.com/aFYjuA73RO
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Does anyone know a simple, *fast* way to display a numpy array as pixels, e.g. for watching cellular automata in real time? (I usually use pygame but it has some weird issues on retina displays, so I'm wondering if there's a better option.)
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If I start a reading group the focus would be on getting a really solid understanding of the basics, while working towards applications in complex systems (especially dynamical systems and stochastic processes) and machine learning.
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Do I know anyone in Tokyo who's either into category theory or might be interested in getting into it via some kind of reading group type thing, probably starting this spring/summer when I'll be based there. (Or is there an existing reading group already?)
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An article about our ongoing work at ELSI, on "slow chemistry," autocatalysis, and the origin of life http://www.elsi.jp/en/media/blogs/2020/20200128_mkaufman …
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The clips are designed to print in place without supports, and allow a lot of movement while enforcing the matching rules for Penrose tilespic.twitter.com/DqZo8wuvY8
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Or maybe to put it another way, Set is to Rel as Cat is to ____? (I'm not sure if that's the same question or a different one. Maybe profunctors are the answer to this question?)
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Questions for category theorists: function is to relation as functor is to ______? And also function is to relation as natural transformation is to _____? (I'm just curious whether they have names/uses.)
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2nd addendum: I think I saw some acetabularia once, while trying scuba diving on holiday in Croatia. At the time I just thought it was disappointing that there was only one species of coral - if I'd known what they really were I would have been thrilled.
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Addendum: all these examples are eukaryotes. (The same type of cell as plants, animals and amoebas.) Does anybody know if there are any unusually large bacterial cells?
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(4/4) There are at least two ways to be a large organism: have lots of cells, or just be one big one. The multicellular strategy seems to be so much more popular, but the other one exists as well, and this seems not to be as widely known as it should be!
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(3/n) Xenophytophores are apparently quite common on the deep ocean floor and can grow up to 20cm. They are single-celled amoebas, but each one has many nuclei. https://en.wikipedia.org/wiki/Monothalamea …, pic from https://www.flickr.com/photos/noaaphotolib/5277251291 …pic.twitter.com/ef1kN5GDbH
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(2/n) Giant single celled organisms aren't even all that rare. This one looks like a cheap sci-fi prop but is actually a single-celled alga that can grow up to 5cm in diameter. https://en.wikipedia.org/wiki/Valonia_ventricosa …pic.twitter.com/DJAIfQEApI
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(1/n) These look like plants, but they are actually something rather wonderful and strange. Each of those flower-looking things is a single cell (with a single nucleus!), up to 10 cm tall. https://en.wikipedia.org/wiki/Acetabularia …pic.twitter.com/ILhqD8N4Lx
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(See also my previous thread, with more pics and some pointers to related work by film photographers https://twitter.com/NathanielVirgo/status/1219367199422517248?s=20 …)
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