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<div class="" style="word-wrap:break-word; line-break:after-white-space">I don’t know if anyone can help me with this but I am at a complete loss as to what could be going wrong.
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<div class="">The attached source file, aside from setup, is to produce a single picture—a phase portrait for a homogenous second order system of llinear o.d.e.’s (constant coefficients) using the pst-0de package. It is designed for testing tweaks for this
program.</div>
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<div class="">In the context of a larger document, this has worked to produced a substantial number of pictures. The code is copied verbatim (command-C) from one of its appearances in that document, so there should be nothing intrinsically wrong, internally,
with the code. Just to check for possible problems with package calls, I have also copied verbatim the preamble to the large doecument in which this figure worked.</div>
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<div class="">Nonetheless, this time when I try to compile, I seem to never get to having the program actually run, and I get an asterisk; if I hit return on the console, I get the statement “type \end” and when I do I again get the asterisk,</div>
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<div class="">To stress again, <i class="">this identical block of code</i> (from \begin{figure} to \end{figure}, in a larger document
<i class="">with the identical preamble </i><span class="" style="font-style:normal">runs fine, but isolated </span>like </div>
<div class="">this, something is going wrong. I can only surmise that the problem is somewhere in this “minimal” example. Where to look?</div>
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<div class="">If it helps, here is what the code is supposed to do: it is plotting integral curves of the system of o.d.e.’s</div>
<div class=""><span class="x_Apple-tab-span" style="white-space:pre"></span>x’ =<span class="x_Apple-tab-span" style="white-space:pre">
</span>Ax+By</div>
<div class=""><span class="x_Apple-tab-span" style="white-space:pre"></span>y’ =<span class="x_Apple-tab-span" style="white-space:pre">
</span>Cx+Dy</div>
<div class="">inside a \picsize by \picsize box. (The values of A,B,C,D, and \picsize are set in the body of the code), with the option of picking inotial conditions</div>
<div class="">at evenly spaced positions along the top, bottom, left edge, and/or right edge of the box. As set right now, the top/bottom part is commented out,</div>
<div class="">and the active part is supposed to do x’=x, y’=y, starting at 24 places spaced 0.25 units apart (deliberately more than the 5x5 box, which clips the results). The picture should look like the hyperbolas xy=C for various C.</div>
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<div class="">There is a lot in the preamble (including calls to packages of my privately defined macros, which however are not needed for this particular picture)</div>
<div class="">but I’ve left everything in place to see if there is a conflict somewhere. but again, these same package calls have worked fine when I run the whole document.</div>
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