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Re:Mathematics Cheat Sheet [pdf] by timeinput on Friday June 11, 2021 @01:50AM (#27469775)
This site might have an alternative copy that's been updated more recently: http://mathscheats.weebly.com/2019-downloads.html

I still wish there was LaTeX for it.

Re:Mathematics Cheat Sheet [pdf] by app4soft on Friday June 11, 2021 @02:27AM (#27469979)
> I still wish there was LaTeX for it.

As email probably unavailable, there are Alex's Facebook/Instagram.[0]

[0] https://news.ycombinator.com/item?id=27468908#27469861