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<div class="moz-cite-prefix"> <br>
I'm not that familiar with the DifferentialSystem actor.<br>
<br>
The docs for the Ptolemy DifferentialSystem actor may be found at
<a class="moz-txt-link-freetext" href="http://chess.eecs.berkeley.edu/ptexternal/src/ptII/doc/codeDocViptos/doc/codeDoc/ptolemy/domains/continuous/lib/DifferentialSystem.html">http://chess.eecs.berkeley.edu/ptexternal/src/ptII/doc/codeDocViptos/doc/codeDoc/ptolemy/domains/continuous/lib/DifferentialSystem.html</a><br>
<br>
There are these demos that might help:<br>
<ul>
<li><a
href="../../../../../../ptolemy/domains/gr/demo/FurutaPendulum/FurutaPendulum.xml">ptolemy/domains/gr/demo/FurutaPendulum/FurutaPendulum.xml</a>
</li>
<li> <a
href="../../../../../../ptolemy/domains/continuous/demo/FurutaPendulum/FurutaPendulum.xml">ptolemy/domains/continuous/demo/FurutaPendulum/FurutaPendulum.xml</a>
</li>
<li> <a
href="../../../../../../ptolemy/domains/continuous/demo/Lorenz/LorenzDifferentialSystem.xml">ptolemy/domains/continuous/demo/Lorenz/LorenzDifferentialSystem.xml</a></li>
</ul>
<p>_Christopher<br>
</p>
<br>
On 10/21/13 4:42 PM, Godbole, Pranav wrote:<br>
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cite="mid:135162870.1001678.1382398929788.JavaMail.root@mail.gatech.edu"
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<div style="font-family: trebuchet ms,sans-serif; font-size: 10pt;
color: #000000">Hi!<br>
<br>
I'm looking to solve a sizable number of 2nd order ODE's in
Kepler. Given the large number of equations I need to solve, I
think using the standard 'expression / integrator' method may
become too messy, so I was looking into using the Differential
System actor to keep things tidy. The problem is I'm not sure
how to correctly use the actor. I found the documentation to be
confusing and could not find any tutorials for Kepler/Ptolemy
II/Simulink to clarify. If someone could write a quick tutorial
using a minimal example (maybe an undamped pendulum) or point me
in the right direction, I would greatly appreciate it! <br>
<br>
Aside: The ODE's are in reduced (1st order) form, so it is
really just a matter of getting it into Kepler.<br>
<br>
<br>
Cheers,<br>
<br>
Pranav</div>
<br>
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<br>
<br>
<pre class="moz-signature" cols="72">--
Christopher Brooks, PMP University of California
Academic Program Manager & Software Engineer US Mail: 337 Cory Hall
CHESS/iCyPhy/Ptolemy/TerraSwarm Berkeley, CA 94720-1774
<a class="moz-txt-link-abbreviated" href="mailto:cxh@eecs.berkeley.edu">cxh@eecs.berkeley.edu</a>, 707.332.0670 (Office: 545Q Cory)
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