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If you want to learn more about quantum mechanics starting from 1+1=2 please check out https://quantum.chaidhat.com !

over half are unknown

do you work at Uber by any chance?

Thank you!

Thank you very much. I never knew of those pronunciations, I will read up on them! I had a Russian physics professor once and he was very suave: he wore aviators during our final exams.

Mine was like an ancient remnant from the soviet union, dry as anything but wickedly funny, used to yell at us if we pronounced the Cyrillics wrong, or more usually if we did not use capitals for units named after people; I can still hear his rebuke "why do we capitalize Newtons? BECAUSE HE WAS A GREAT MAN".

Really punished our (my) youthful laziness.


I prefer to do startups!

Thank you! Glad to hear you like it!

Lmk what you guys think!

Just skimmed it. But I think all math / physics concepts should be taught like this. Thank you for doing this.

Ok, after a few steps, it feels a bit like the meme of how to draw an owl :) (eg some steps are left to be desired, especially after matrix)


Thank you! Haha yes, I think some stuff are out of order (they were once ordered). I will have to revisit and reorder them again

Maybe they should stop pushing these bankers to do 48 hour shifts…

These are not bankers, but the culture is still bonkers

As a product of the STEM post-SAT UC system (UCLA ‘26), I never personally experienced “middle school math” being taught or a lack of mathematical understanding.

I’ve had my fair share of classes which throw you into the deep end and not many which coddle you. Never seen any professor teaching middle school mathematics. A lot of professors started off with a vague idea of prerequisites, covered the basic ideas and usually go straight into the deep end with new material. It is up to the student to make sure they are acquainted with the prerequisites, go to discussions or office hours to ask TAs or the professor, or just drop the class and do it next quarter (without penalty). At least in my four years at UCLA, we have ample opportunity to do it and the TAs are 90% empathetic towards “stupid questions.”

So in my personal opinion, I think profs shouldn’t be wasting time teaching basic math and there are more than enough opportunities for the student to learn it at their time in the UC.


Thanks for sharing your post-SAT experience and it's similar to mine (UCD engineering '14). The article mentions "middle school math" for people in first semester calculus but doesn't specify which calculus series. There were at least three when I was in undergrad: engineering/physics/math, biology/life-science, and business/econ series.

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