Ploting graph on matlab
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Hi I just want to plot this equation on matlab and plot the graph for finding the type of its graph too.
here is my code but it didn't work well:
clc, close all
t = 0:1:100000;
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)),
采纳的回答
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.
4 个评论
cikalekli
2021-5-18
Star Strider
2021-5-18
As always, my pleasure!
‘1- I just tried to set this code with 1 millisecond. Is t = 0:1:100000 showing the time set 1 millisecond?’
I do not understand what this means. The curve is essentially 0 after 2 ms, assuming that the tine constants of the exponentials are in units of 1/sec.
‘2- Do we call this type of graph as "Underdamped"?’
I would.
‘Also, sorry how could we find out this -> t = linspace(0, 2E-3, 500);’
No worries! I looked at the time constants of the exponentials and then experimented to get a decent-looking plot.
.
Star Strider
2021-5-18
Thank you!
As always, my pleasure! Please take good care of yourself as well!
You appear to be learning MATLAB quickly!
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