Errata
From FBSwiki

This page contains information about errata for Feedback Systems. The errata listed here include all known and corrected errors since the first printing of the book (Version 2.9d).
Conventions: each line of text and each line of a displayed equation are counted as a line. Negative line numbers mean number of lines from the bottom of the page. First line on page = 1, last line on page = 1. Entries in boldface indicate errors which might change the interpretation of the text.
Page  Line  Erratum  Version 

106  7  Solution for x_2j in block diagonal form discussion has sign errors  N/A 
108  8  Missing γ in equation (4.9)  N/A 
112  1  In Example 4.9, V(x) should be V(z)  N/A 
117  3  Typo in the caption for Figure 4.15  N/A 
126  5  In Exercise 4.1, x_0 should not be subtracted from timeshifted solution  N/A 
131  15  Extraneous text "!linear" in Section 5.1  N/A 
169  12  In heuristic derivation of reachability test, α is missing subscript  N/A 
220  12  In computation of error dynamics, u_ff argument is missing  N/A 
224  7  References to first and second equations are switched in computer implementation discussion  N/A
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311  3  Missing ydot after equation (10.16)  N/A 
319  7  Extraneous text "!design" in Chapter 12  N/A 
336  8  Extraneous text "!design" in Chapter 12  N/A 
369  1  Extraneous text "!design" in Chapter 12  N/A 