УТС 5 семестр / 4 практика(ресурсы) / n2

% x0 = [-0.2 0.3];
% t = 0:0.05:8;
% u = zeros(length(t),1);
% u(t>=2) = 1;
%
% k=40
% sys = tf([1 15 75 125], [1 15 75 125+125*k]);
% hold on
% lsim(sys,u,t,x0)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 2.2.
% k = 0.01
% w = tf([1 1 0 0], [1 1 2*k k]);
% hold on
% t = 0:0.01:10;
% u = 0.5*t.^2;
%
%
% k = 0.1
% w1 = tf([1 1 0 0], [1 1 2*k k]);
% % lsim(w1,u,t)
%
% k = 1
% w2 = tf([1 1 0 0], [1 1 2*k k]);
% % lsim(w2,u,t)
% lsim(w,w1,w2,u,t)
% grid on
% legend('k=0.01','k=0.1','k=1')
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% % 2
% Eust = @(k) (1/(k))
% fplot(Eust, [0, 100])
% xlabel('k')
% ylabel('e(уст)')
% grid on

% Вопрос 3

k = 1
w = tf([k k], [1 1 k k]);
step(w)

hold on
k = 10
w2 = tf([k k], [1 1 k k]);
step(w2)
grid on
legend('k=1', 'k=10')