P. 125, line 8

From Bill Goodwine's Wiki
Jump to: navigation, search

The line should be:

c \cos \phi = \sqrt{x_0^2 + \frac{\dot x_0^2}{\omega_n^2}} \frac{x_0}{\sqrt{x_0^2 + \frac{\dot x_0^2}{\omega_n^2}}}, \quad -c \sin \phi = \sqrt{x_0^2 + \frac{\dot x_0^2}{\omega_n^2}} \frac{x_0}{\omega_n \sqrt{x_0^2 + \frac{\dot x_0^2}{\omega_n^2}} }.

Return to errata.