This document lists typos and mistakes in the textbooks "Introduction to Linear and Matrix Algebra" and "Advanced Linear and Matrix Algebra" by Nathaniel Johnston. ----------------------------------------- INTRODUCTION TO LINEAR AND MATRIX ALGEBRA ----------------------------------------- - Theorem 1.4.1: the proof references Theorem 1.3.2. While this is is technically correct, a better/clearer reference would have been Theorem 1.3.5. (thanks to Michael Mott) - Exercise 2.1.6(a): the solution in the back of the book is (-30, 3, 60, 7, 0) + z(-51, 3, 106, 5, 6)/6, which should be (-30, 3, 60, 7, 0) + z(-51, 2, 106, 5, 6)/6. (thanks to Michael Mott) - Exercise 2.5.7 has two "b" parts. The second one should be part "c". (thanks to Dominic Haidar) - Exercise 3.2.5 has two "a" parts. The second one should be part "c". (thanks to Piko Mone on Youtube) - Exercise 3.4.6 has parts (f)-(j) mislabeled. They should be labeled (e)-(i). (thanks to Keagan Finnigan-MacEachern) ---------------------------------- ADVANCED LINEAR AND MATRIX ALGEBRA ---------------------------------- - None yet.