New ask Hacker News story: Ask HN: Best books or courses to self study undergrad math subjects?

Ask HN: Best books or courses to self study undergrad math subjects?
2 by newsoul | 2 comments on Hacker News.
For someone out of touch in mathematics and done undergrad in electrical engineering and currently working as a programmer I want to relearn/learn mathematica again. I have done calculus in the past and some matrix algebra and probability in college. But I remember those topics very foggily. I want to learn undergrad math properly again. Books or courses are my friend in this journey. I ask you all HNers who have had similar experiences or have suggestions please suggest a path I should follow. P.S.: Being an electrical engineering grad I know boolean logic and all. But have never formally learned or written mathematical proofs. I want to learn that too.

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