?? exa19.m
字號:
t0= 0; tfinal =15; % time interval
x0 = [0.5, 0]; % initial conditions
% [t,x] = ode23('electsys', t0, tfinal, x0); % use with MATLAB 4
tspan = [t0, tfinal]; % use with MATLAB 5
[t,x] = ode23('electsys', tspan, x0); % use with MATLAB 5
subplot(2,1,1),plot(t,x)
title('Time response of an RLC series circuit')
xlabel('t, sec')
text(8,1.15,'Capacitor voltage')
text(8, 0.1,'Current')
vc= x(:,1); i = x(:,2);
subplot(2,1,2),plot(vc, i)
title('Current versus capacitor voltage ')
xlabel('Capacitor voltage')
subplot(111)
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