The function declines very rapidly, so use a different value for ‘t’ —
% t = 0:1:100000;
t = linspace(0, 2E-3, 500);
ic = -30000*t.*exp(-5000*t) + 6*exp(-5000*t);
figure(1)%;clf;
plot(t, ic);
xlabel('\bf\it Time ', 'fontsize', (25)),
ylabel('\bf\it Amplitude', 'fontsize', (25)),
Also, the clf call immediately clears ‘figure(1)’ after creating it. The plot call regenerates it so nothing is actually lost, however it is inefficient to create it, clear it, then create it again.
