[OS X TeX] parametricplot in pstricks
Michael Sharpe
msharpe at ucsd.edu
Mon Sep 10 12:16:13 EDT 2018
> On Sep 10, 2018, at 8:27 AM, Nitecki, Zbigniew H. <Zbigniew.Nitecki at tufts.edu> wrote:
>
> What is wrong here? using pstricks, pst-plot and \pst-math, the following command
>> \parametricplot[plotstyle=curve, plotpoints=50]{-1.8}{1.8}{0.25 t Pi mul mul cos t}
> which should create a curve opening left, creates a vertical line.
>
> Minimal example:
>
Remember that cos in Postscript expects its argument in degrees, so you may wish to use instead
\parametricplot[plotstyle=curve, plotpoints=50]{-1.8}{1.8}{0.25 t 180 mul mul cos t}
Michael
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