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The Little Book of Linear Algebra

(github.com)
468 points scapbi | 1 comments | 02 Sep 25 14:17 UTC | HN request time: 0s | source
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rw_panic0_0 ◴[02 Sep 25 17:38 UTC] No.45106403[source]▶
how is it beginner friendly, first paragraph and already an obscure formula for non math people
replies(2): >>45106487 #>>45106657 #
relaxing ◴[02 Sep 25 17:54 UTC] No.45106657[source]▶
I agree. I wouldn’t consider someone who has taken (and remembers) a course in set theory a beginner without some added qualifier.

One of my pet peeves is using mathematical symbols beyond basic arithmetic without introducing them once by name. Trying to figure out what a symbol is and what branch of math it comes from is extremely frustrating.

replies(3): >>45109529 #>>45109946 #>>45112027 #
1. CamperBob2 ◴[02 Sep 25 22:28 UTC] No.45109946[source]▶
I haven't taken any courses in set theory, but it makes perfect sense to me. Once someone tells you that the funny script 'R' means "Real numbers", the funny E means "is an element of", and the vertical | means "given that," that's pretty much all you need to know to dive in.

If those concepts cause difficulty, it probably makes sense to go back down the learning curve a bit before tackling linear algebra. Alternatively, just cut and paste the expression into any LLM and it'll explain what's what.