grant sanderson's own list of where to learn math

straight off 3blue1brown's recommendations page. platforms first, then the youtube channels he actually watches.

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problems that build on each other, plus people arguing in the comments in a good way. his top platform pick

closer to a museum exhibit than a textbook. you actually have to do things, not just watch

Mathologer

Numberphile

less a course, more mathematicians geeking out on camera. good gateway

Standup Maths

Matt Parker, genuinely funny, still teaches you something

Looking Glass Universe

Welch Labs

beautiful production, the imaginary numbers and machine learning series espeically

Black Pen Red Pen

Patrick JMT

worked examples for whatever calculus thing you forgot how to do. not exciting, just useful

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