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<div class="" style="word-wrap:break-word; line-break:after-white-space">I’m trying to draw some phase portraits of 2nd order systems of o.d.e. using the pst-ode package. I modelled my code after a more elaborate example
<div class="">on stack exchange.</div>
<div class="">In the attached code, I get a “forgotten end group” error at line 48 (which reads \end{pspicture}), and if I persist (using r on the console) it tells me the </div>
<div class="">\begin{pspicture} on line 38 is ended by \end{document} on line 49. I know my use of ODEsolve is correct, since with parameters entered directly </div>
<div class="">it works.</div>
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<div class="">Could this have to do with my putting the output of ODEsolve in the file line_ii_ij (inside the top multido)? I didn’t fully understand the first two</div>
<div class="">arguments in ODEsolve: the first is the output and the second apparently sets the mode of output (in the documentation the examples just give a name</div>
<div class="">to the output and use (0 1) for the mode of output).</div>
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Zbigniew Nitecki</font></div>
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<font face="Helvetica" size="3" class="" style="font:normal normal normal 12px/normal Helvetica">Tufts University</font></div>
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