This is a collection of Simulink blocks implementing simple nonlinear dynamical systems that have attractors in their state space.
A general 3D Simulink scope (coded in the s-functions sfun3d.m) is used to display (in 3D) the evolution of the system during the simulation.
Currently (Jan 2017), the featured systems are Lorenz, Van Der Pol, simple Lotka-Volterra, competitive N-D Lotka Volterra and Henon. Note that this only works for versions 2014b and later.
Giampy
Cite As
Giampiero Campa (2021). Attractors (https://www.mathworks.com/matlabcentral/fileexchange/7939-attractors), MATLAB Central File Exchange. Retrieved .
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Inspired by: 3DScope
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For versions 2014b and later, as a temporary fix, you can delete the sfunxyz.m file and install 3Dscope:
http://www.mathworks.com/matlabcentral/fileexchange/4915-3dscope
Then everything except henon2d will work. I might get around to update this submission in the future.
Note that some of the models are based on a 3D scope that does not work properly for 2014b and later versions. I will try to fix it at some point. If you need it sooner rather than later please let me know.
Simple, practical and well done. Congrats.
Hi,
I am modelling population growth using Lotka-Volterra competitive equations (not the predatory - prey ones).
Did you use these equations in a model as well?
I downloaded and yet to evaluvate it
-- Germany
how download this file???... because, that's not posible.... I interesting to download to evaluate that, but the page not response the download...