I managed to find an older version of the book, but somehow still unused, for a much lower price. I haven't found anything missing yet that I really need to know. I'm sure Linear Algebra as a field of knowledge has advanced a lot in that time, but the basics are still the basics.

I bought it because I checked several Linear Algebra books out from the university library, including an even older version of Strang's, and found that I liked it far more than the rest. Good transitioning between motivation, explanation, proofs, and examples for each topic. Also, it follows the on-line Strang lectures.

We used Strang for Linear Algebra. It was the only math class in college I did badly in. I tried multiple times to understand linear algebra and every time I ended up at the picture in the first few pages of the book. Each page built upon the previous page and there were no pictures to anchor on.

A year later I took an OpenGL class then a grad class in Computational Geometry. Once I had pictures and application I was fine. Morphing space and w/ matrix transformations and drawing in it in OpenGL was all I needed to snap the semester of symbol manipulation into focus. Strang to me was like man pages. Great for reference, terrible for learning.