August 3rd, 2024

Linear Algebra Done Wrong (2004)

Linear Algebra Done Wrong by Sergei Treil is a free textbook for advanced students, focusing on finite-dimensional vector spaces and emphasizing analysis, geometry, and probability, with updates in the 2017 version.

Read original articleLink Icon
Linear Algebra Done Wrong (2004)

Linear Algebra Done Wrong, authored by Sergei Treil, serves as a textbook for an honors linear algebra course aimed at mathematically advanced students. The book is designed to introduce students to rigorous mathematics, moving beyond the "cookbook style" of traditional calculus courses. It emphasizes a blend of elementary concepts and concrete examples while focusing on topics relevant to analysis, geometry, and probability, rather than traditional algebraic topics. The text restricts its scope to finite-dimensional vector spaces over real or complex fields, intentionally omitting infinite-dimensional spaces to avoid the complexities of functional analysis. The book is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License, allowing free use for non-commercial purposes, including teaching and studying. The September 2017 version includes corrections of numerous typos and updates to exercises, as well as expanded sections on non-orthogonal orthogonalization and singular value decomposition. The book is available for download in PDF format, along with previous versions and errata.

- The book targets mathematically advanced students for a rigorous introduction to linear algebra.

- It focuses on finite-dimensional vector spaces over real or complex fields.

- The text is available for free under a Creative Commons license for non-commercial use.

- The September 2017 version includes corrections and updates to exercises.

- It emphasizes applications relevant to analysis, geometry, and probability rather than traditional algebra topics.

Link Icon 8 comments
By @generationP - 4 months
FYI, there is a newer version at https://sites.google.com/a/brown.edu/sergei-treil-homepage/l... . Google seems to never have learnt about this site, which is weird as it is on a Google server.
By @aquafox - 4 months
For a really intuitive introduction to linear algebra, I highly recommend Gilbert Strang's "Linear Algebra and Learning from Data": https://math.mit.edu/~gs/learningfromdata/
By @munchler - 4 months
> Why should anyone read this book if it presents the subject in a wrong way? What is particularly done “wrong” in the book?

Does he ever answer this question? It's posed at the start of the book, but then immediately ignored.

By @dang - 4 months
Related:

Linear Algebra Done Wrong [pdf] - https://news.ycombinator.com/item?id=999494 - Dec 2009 (12 comments)

By @paulpauper - 4 months
Why does linear algebra elicit so much confusion despite being an elementary topic. I think part of the problem is that the connection between matrices and matrix operations and their applications is not explained well enough. Linear algebra is typically one's first foray into abstract mathematics, and if taught poorly sets one up for failure down the road.
By @behnamoh - 4 months
We seriously need better terminology, notation, and pedagogy when it comes to linear algebra. In 2024, such old-style text books just don't cut it anymore.
By @beryilma - 4 months
... and another beauty of a math book written in LaTeX is that you can fit a 286-page book into just 1.3 MB. Good luck doing that in MS Word.
By @optbuild - 4 months
After having my first Linear Algebra course I came across the online course called Linear Dynamical Systems by Prof Stephen Boyd of Convex Optimisation fame.

Every lecture was so eye opening. I couldn't believe that linear algebra could be taught in such a context with such a variety of application domains.

The lectures are all available online with the assignments : https://ee263.stanford.edu/archive/