adjoint
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adjoint | hn-search | |
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11 | 1,619 | |
157 | 524 | |
- | 1.5% | |
0.0 | 2.9 | |
over 1 year ago | 6 months ago | |
TypeScript | ||
- | GNU General Public License v3.0 or later |
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Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
adjoint
- The Mathematical Hacker
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Why Is Symmetry So Important in Particle Physics?
This idea shows up in essentially all scientific fields. It’s the idea of adjointness. Together with norm, they give you the idea of fixed points, (invariants, spectra, embeddings, braids etc).I'm
Lawvere's fixed point theorem is I think the best formulation of the idea
https://ncatlab.org/nlab/show/Lawvere%27s+fixed+point+theore...
I've been putting together a brain dump on the topic
https://github.com/adamnemecek/adjoint/
Join the discord https://discord.gg/mr9TAhpyBW
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Gödel’s first incompleteness theorem – an interactive tutorial
I’ve always thought that the completeness theorem was more interesting.
Also I really like approaching this from Lawvere’s fixed point theorem. https://ncatlab.org/nlab/show/Lawvere's+fixed+point+theorem
I have been thinking about some of this stuff
https://github.com/adamnemecek/adjoint
- Young Diagrams and Classical Groups [pdf]
- Gödel, Escher, Bach: an in-depth explainer
- Transformers Seem to Mimic Parts of the Brain
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A software engineer's circuitous journey to calculate eigenvalues
Yeah I have been realizing this lately as well. I have written up a bit on this
https://github.com/adamnemecek/adjoint/
Check the raw source there’s a bunch of links.
Fixed points, diagonalizations and eigenshit are all the same thing.
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Tools for Better Thinking
I think that there are like three concepts in math or the world, the concepts being the adjoint, norm and fixed point.
https://github.com/adamnemecek/adjoint
The concept of a fixed point is so ubiquitous.
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Interactive introduction to game theory and trust
Game theory, just liek essentially everything in math, physics and probability, and cs is about adjoints, norms, and fixed points https://github.com/adamnemecek/adjoint/
Nash equilibrium is a fixed point.
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Emily Riehl is rewriting the foundations of higher category theory
For me it was the idea of adjoint functors which is the central idea of category theory.
I wrote up a bit on it here https://github.com/adamnemecek/adjoint
hn-search
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Gary Killdall, creator of CP/M, wrote Pixar's original 3D renderer [pdf]
The submitted title was "Gary Killdall, creator of CP/M, wrote Pixar's original 3D renderer".
Submitters: If you want to say what you think is important about an article, that's fine, but do it by adding a comment to the thread. Then your view will be on a level playing field with everyone else's: https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...
(From https://news.ycombinator.com/newsguidelines.html: "Please use the original title, unless it is misleading or linkbait; don't editorialize.")
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Nearsightedness is at epidemic levels – and the problem begins in childhood
Vision therapy for myopia helps some people, but not everyone, likely due to genetic and neuroplasticity differences, https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu.... Nevertheless, many of the principles are useful for children whose eyes and brains are still developing.
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Tesla driver arrested for homicide after running over motorcyclist on Autopilot
I'm a huge Tesla skeptic, but Tesla and Musk are lightning rods for tabloid-style garbage that doesn't belong on HN, so it doesn't surprise me that we often see negative Tesla content flagged to death. Meanwhile we also see plenty of content that hits the front page and stays there [0].
Do you have examples of professional, interesting Tesla content that got flagged?
[0] More than half of the past year's most popular Tesla articles were negative: https://hn.algolia.com/?dateRange=pastYear&page=0&prefix=tru...
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The Man Who Killed Google Search
It's April 23rd, 2024, and I am still looking for a good, reliable, honest and simple search engine.
All I want to do is search.
No AI.
No ads.
No shopping.
Please don't "Answer my question." I enjoy doing my own original research, thanks.
I'm entirely willing - wanting even - to pay for it.
Currently Kagi has my $, but I'm saddened and frustrated that they're not even focused on Search, they're focused on AI[1] and t-shirts.
Amazingly, in 2024, there is still a market opportunity for a good search engine.
It can't really just be me, can it?
[1]: https://hn.algolia.com/?query=%22kagi%22+%22ai%22
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Ask HN: Is Hacker News under attack from spam bots?
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
For historical purposes
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Tesla Recalls All Cybertrucks for Faulty Accelerator Pedals
Most likely because there have been oodles of low-quality stories on these topics. We turned the flags off on this one since it maybe rises above the noise (see https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so... for past explanations on how we approach that).
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Show HN: What Are You Working On?
Hey HN,
I'm sure you've seen the monthly "Ask HN: What Are You Working On?" headlines on [Hacker News](https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...).
Honestly, it's my favorite topic because it's packed with insights about what other hackers are up to.
I wondered what it would be like if instead of just a headline, there was a whole website where hackers could post daily updates, and where we could follow the hackers we're interested in for their latest updates. And so, this web site was born.
I hope it gets used frequently so we can all benefit from it together. I look forward to hearing your thoughts.
Let me know what you think!
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Not Apply to YC
I don't know what one thing you're referring to, but it's a core principle of HN to try to avoid repetition, and especially the repetition+indignation combo, which is the commonest and most tedious thing on the internet.
https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...
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Nand to Tetris: Building a Modern Computer System from First Principles
Happy 10,000 day to you
https://news.ycombinator.com/from?site=nand2tetris.org
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
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Moxie: I'm no longer involved at Signal
not sure. I searched comments: https://hn.algolia.com/?dateRange=pastYear&page=0&prefix=fal...
Most recent are more culture wars stuff but some earlier ones appear to suggesting a degree of alignment with the USA government.