View source for Errata: In Example 5.3, omega d should have terms in the square root reversed

{{errata page
| chapter = Linear Systems
| page = 138
| line = -11
| contributor = R. M. Murray
| date = 17 Jan 2014
| rev = 2.11b
| version = Third printing
| text = The expression for <math>\omega_d</math> is incorrect.  The proper expression is
<center><amsmath>
  \omega_d = \omega_0 \sqrt{1 - \zeta^2}
</amsmath></center>
}}