Ask HN: What kind of math do you study in your free time?

Re:Ask HN: What kind of math do you study in your free time? by iamcreasy on Thursday June 11, 2020 @02:30PM (#23491849)

I only took 1 semester of a grad-level Linear algebra course. Is there any newbie friendly book for Multilinear Algebra with emphasis on Application that you know of? Thank you!

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Re:Ask HN: What kind of math do you study in your free time? by Koncopd on Thursday June 11, 2020 @07:49PM (#23494432)

There is a wonderful book "Linear Algebra via Exterior Products" by Sergei Winitzki. You can download it for free from his site - https://sites.google.com/site/winitzki/linalg

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Re:Ask HN: What kind of math do you study in your free time? by iamcreasy on Thursday June 11, 2020 @09:43PM (#23495142)

Thanks. But this book seems to be mostly theoretical. I was looking for one with an emphasis on practical/real life problems.

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Re:Ask HN: What kind of math do you study in your free time? by Koncopd on Friday June 12, 2020 @04:42AM (#23497294)

Hm, this book applies exterior algebra to linear algebra. I don't think there are a lot of applications of multilinear algebra outside of math, it is mostly needed to study differential geometry (forms and so on).

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