What topics are covered in linear algebra class?

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Discussion Overview

The discussion centers around the topics typically covered in a linear algebra class, with a focus on self-study resources for physics and math majors. Participants share their insights on essential concepts and recommend textbooks for learning linear algebra.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant lists key concepts in linear algebra necessary for understanding quantum mechanics, including vector spaces, inner products, linear independence, orthonormal bases, linear operators, matrix multiplication, and eigenvectors and eigenvalues.
  • Another participant recommends specific textbooks, such as Friedberg, Insel & Spence, and Axler, while advising against books that delay the introduction of linear operators.
  • Several participants mention free resources for learning linear algebra, including a book by Hefferon and other free notes available online.
  • One participant expresses appreciation for the explanations provided, particularly regarding the concept of vector spaces.

Areas of Agreement / Disagreement

Participants generally agree on the importance of certain linear algebra concepts for physics, but there is no consensus on a single best textbook, as multiple recommendations are provided.

Contextual Notes

Some participants note the omission of determinants in initial discussions, indicating that different resources may cover topics to varying extents.

Who May Find This Useful

This discussion may be useful for students in physics or mathematics who are preparing to study linear algebra independently, as well as educators seeking resource recommendations.

Saurophaganax
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What topics/chapters are covered in a typical linear algebra class? I am a physics/math major but I won't be able to take classes for a few years. I am trying to teach myself linear algebra so I can read physics textbooks. Thanks
 
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This is what I said to someone who asked about what he should know before he studies quantum mechanics.
Fredrik said:
The concepts from linear algebra that you need to understand are: vector spaces, inner products, linear independence, orthonormal bases, linear operators, matrix multiplication, the relationship between linear operators and matrices, the adjoint operation, eigenvectors and eigenvalues.
I should have mentioned determinants as well. If you understand these things, you're off to a good start. I've been told that Friedberg, Insel & Spence is a very nice book. Axler is also good. There are several other acceptable choices. I would however recommend that you stay away from books like Anton, which wait as long as possible with the introduction of linear operators (also called linear maps, linear functions or linear transformations). The sooner they are introduced, the better.
 
This is the best linear algebra book I know of, and it also happens to be free: Hefferon, http://joshua.smcvt.edu/linalg.html/ . "Best" for me means interesting applications and good motivation for new topics as they're introduced.
 
here are at least two free linear algebra books:

http://www.math.uga.edu/~roy/look for the free notes.

#1) is a 15 page linear algebra book covering everything in basic linear algebra excelt determinants.

#7) covers even that, and much more in more detail in less than 100 pages.

If you are picky and want a really good book, here is one 250 pages long by Sergei Treil:

http://www.math.brown.edu/~treil/papers/LADW/LADW.pdf
 
Last edited by a moderator:
bcrowell said:
This is the best linear algebra book I know of, and it also happens to be free: Hefferon, http://joshua.smcvt.edu/linalg.html/ . "Best" for me means interesting applications and good motivation for new topics as they're introduced.

Sorry to get off topic, but...

Thank you sooooo much! I've been trying to understand the concept of a vector space for the past week and a half. This has been the best explanation to me so far! Thanks!
 

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