plotting Phase-Plane Portraits

2013 1 28
3 个回答
更新时间：2023 1 5
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Hi everyone!
How can I plot phase-plane portraits of a nonlinear system?

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JEAN-CLAUDE boleme
JEAN-CLAUDE boleme 2021-4-11
I NEED HELP WITH QUESTION 3 AND QUESTION 4 REGARDING MATLAB CODES
Joydev Debnath
Joydev Debnath 2023-1-5
For plotting of phase-plane potraits in MATLAB of second order non-linear systems you can visit to this link : https://in.mathworks.com/matlabcentral/fileexchange/65952-phase-plane-plotter I hope this might help you. Thank you!

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回答（3 个）

Shashank Prasanna
Shashank Prasanna 2013-1-28

5 个投票

MATLAB offers several plotting routines. The "quiver" function may be ideal to plot phase-plane portraits. I found an interesting link that has some code and discussion on this topic. You can start here and build up:
http://matlab.cheme.cmu.edu/2011/08/09/phase-portraits-of-a-system-of-odes/
Brian Hong
Brian Hong 2022-1-26
编辑：Brian Hong 2022-1-26

2 个投票

There are also app solutions for this problem. For example pplane, which I used in undergrad (almost 10 years ago now). We also created a new app for analyzing the phase plane, you can find it here.
Dan Girma
Dan Girma 2015-10-21

0 个投票

xdot = -y, ydot = -x sketch the vector field.

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