How to draw phase portraits of linear systems in MATLAB

[maverick280857]

Hi

Doesn't MATLAB come with commands to draw phase portraits of linear systems? I can't seem to find anything in the help file. Google searches tell me about third party tools, which I am not supposed to use in my laboratory experiments and assignments.

Any ideas?

Thanks!

 

[f95toli]

Is there any reason why you just can't solve the ODE and then plot the result?

 

[maverick280857]

Sorry, I should have actually asked the following question: how do I plot attractor/repellor basins (with arrows)?