% Nise, N.S.
% Control Systems Engineering, 6th ed.
% John Wiley & Sons, Hoboken, NJ, 07030
% Control Systems Engineering Toolbox Version 6.0
% Copyright 2011 by John Wiley & Sons, Inc.
% TryIt 10.2
% Use MATLAB, the Control System Toolbox, and the
% following statements to plot the Nyquist diagram
% of the system shown in Figure 10.30(a).
% After the Nyquist diagram appears, click on
% the curve and drag to read the coordinates.