% U53, Example 5.3, Satellite Attitude Control w/ PD Control
% 

s = tf( 's' )

sysG = (s+1)/(s^2);

rlocus( sysG, 'r' );

axis('equal')

axis([-6, 2, -3, 3]) 

% axis([-13, 1, -5, 5]) 

set(gco,'LineWidth',4)
% For example