# Linear Algebra Done Right

## Fourth Printing 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 fourth printing
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 28, second line from bottom, "spanned B" should be "spanned V".

- On page 65, line 9, "q_2" should be "q_1".

- 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 87, last line of text, "if and only" should be "if and only if".

- On page 107, four lines above 6.17, "a_m" should be "a_n".

- On page 144, line 5, "conjugate" should be "transpose".

- 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 208, equation (9.23), "V_M" should be "dim V_M".

- On page 217, "alpha_m" in 10.7 should be "alpha_M".