УТС 5 семестр / 3 практика(ресурсы) / n4

close all
hold all
clear all

% k = 0.01
% t = tf([0.7*k k],[1.4 2.7 (1+0.7*k) k])
% rlocus(t)
%

hold on
for k = 0:0.01:1
t = tf([0.2*k k],[0.3 1.7 (1+0.2*k) k])
% t = tf([k],[2 1 k])
pzmap(t)
end
grid on

%
% k=1
% z = tf([0.7*k k],[1.4 2.7 0.7*k 1 k])
% hold on
% loglog([-20, -0.4], [0,0], 'blue')
% rlocus(z)


%
% t = tf([0.1],[2 1 0.1])
% rlocus(t)
%%%%%%%%%%%%%%%%%%%%%%%%вопрос 3
% k = 0.125
% t = tf([0.7*k k],[1.4 2.7 (1+0.7*k) k])
% step(t)
% hold on
% k = 0.126
% t = tf([0.7*k k],[1.4 2.7 (1+0.7*k) k])
% pzmap(t)
% legend('k=1','k=2')
%%%%%%%%%%%%%%%%%%%%%%%%вопрос 2
k = 0.3
t = tf([0.7*k k],[1.4 2.7 (1+0.7*k) k])
step(t)