# Linear Algebra Done Right

## Seventh and Later Printings of the
Second Edition, Errata

I tried hard to make Linear Algebra Done Right
error-free, but spotting mistakes in one's own writing can be
difficult in a book-length work. Errors in the seventh and later printings of the second edition that I know about
are listed below. All these errors were corrected in the third edition. If you notice additional errors in the book or
have suggestions for improvements, please let me know (`linear@axler.net`

).

- On page 81, line 9 of the proof of 5.10, "coefficients a
_{1}, ..., a_{m}" should be ""coefficients a_{1}, ..., a_{n}".

- On page 151, line 12 from the bottom, "1-by-1"" should be
"1-by-1 matrix".

- On page 154, last line, "S
_{2}u" should be
"S_{2}w".

- On page 195, line 9, the period should be a comma.

- On page 207, fifth line below 9.21, "1 < j <= n" should be
"1 < j <= m".

- On page 217, "alpha
_{m}" in 10.7 should be "alpha_{M}".