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Getting Started with Random Matrices: A Step-by-Step Guide (medium.com/cantors-paradise)
39 points by jorgenveisdal 3 days ago | hide | past | favorite | 6 comments





Look, I'm actually interested in the topic, and this piece actually seems to have some useful information in it, but please please please, stop publishing technical/math-heavy articles on Medium. Putting pictures of equations mid-text combined with occasionally cut-off or accidental multi-line equations kills the readability. I mean, the author already spent the time putting most of the background into a Jupyter notebook, which is much more accessible and readable, even directly in the Github repository [1].

I would love to see Medium adjust their formatting to make it possible for something like Tables of Contents, or faithful rendering of notebooks that don't just rely on Github gists, but until then, I think it does a huge disservice to the actual information that technical/symbolic-math-including authors are trying to convey.

[1] https://github.com/WessZumino/Random-Matrix-theory-for-pedes...


I used to publish some math-heavy posts on medium (complete with equation images!) before moving it all over to gitlab pages with the hugo static site generator, and equations rendered with katex. If the author is reading this, the translation process didn't take very long (maybe a day) and I'm very happy with the results; compare:

https://medium.com/@ahelwer/walking-the-faster-than-light-ti...

https://ahelwer.ca/post/2018-12-07-chsh/

I'm generally allergic to tweaking things & general command-line bullshit but the whole process was surprisingly smooth. Readers don't have to deal with popup & tracker bullshit (except for youtube, who have endeavored to make it impossible to embed videos with issuing tracking cookies), and it feels nice to have much more control over what makes it into the final product.


I'll go even further: please stop posting articles on Medium, ever, because they have paywall which prevents many of us from reading them (and they profit off the author's labor).

For any quantitatively-oriented person, the quickest solution might be to write the article in LaTeX and host it on github.io, but other solutions are of course possible (e.g. MathJax and some other free web hosting).


For paywalled sites that let users read X free articles, the easiest solution for me was to block all cookies from the site, i.e. block all cookies from [*.]medium.com. Medium will always think that "You have 2 free member-only stories left this month". This has worked for nytimes and medium so far.

Always wondering: when will this fall under some law of 'computer assisted fraud' or so.

The statement about general matrix diagonalisation is not true (not every matrix is similiar to a diagonal matrix, take nilpotent matrix as counter example).

For random matrice the author introduces what it means to be rotationally (O) invariant, but is what follow restricted to that? Also it is not too clear why the code is actually doing (creating the same ensemble) as what was talked about before.




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