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<div class="">What is wrong here? using pstricks, pst-plot and \pst-math, the following command</div>
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<blockquote type="cite" class="">\parametricplot[plotstyle=curve, plotpoints=50]{-1.8}{1.8}{0.25 t Pi mul mul cos t}</blockquote>
which should create a curve opening left, creates a vertical line.</div>
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<div class="">Minimal example:</div>
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Zbigniew Nitecki<br class="">
Department of Mathematics<br class="">
Tufts University<br class="">
Medford, MA 02155<br class="">
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telephones:<br class="">
my office (617) 627-3843<br class="">
dept. off. (617) 627-3234<br class="">
dept. fax (617) 627-3966<br class="">
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<a href="http://sites.tufts.edu/znitecki/" class="">http://sites.tufts.edu/znitecki/</a></div>
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