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Plotting Phase Plane in Matlab

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Ziv Melamed
Ziv Melamed on 6 Dec 2018
Edited: Matt J on 12 Sep 2021
I have solved the matrix by hand and I found the general solution. If I wanted to plot the phase plane on Matlab, how would I go about doing that?
Here is an example of the general solution for the phase plane I want to plot:
x(t)=c1e^-3t+c2e^-t
y(t)=-c1e^-3t
Both c1 and c2 are constants

Answers (1)

Matt J
Matt J on 12 Sep 2021
Edited: Matt J on 12 Sep 2021
For example,
funx=@(t) c1*exp(-3*t)+c2*exp(-t);
funy=@(t) -c1*exp(-3*t);
fplot(funx,funy,[0,1])
or
t=linspace(0,1,100);
x= c1*exp(-3*t)+c2*exp(-t);
y= -c1*exp(-3*t);
plot(x,y,'x')

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