[OS X TeX] parametricplot in pstricks
Nitecki, Zbigniew H.
Zbigniew.Nitecki at tufts.edu
Mon Sep 10 14:10:06 EDT 2018
Yes, but that is not the problem here. I guess I did mix up cos and COS, but either way I should get a curve, not a line.
Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155
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On Sep 10, 2018, at 12:16 PM, Michael Sharpe <msharpe at ucsd.edu<mailto:msharpe at ucsd.edu>> wrote:
On Sep 10, 2018, at 8:27 AM, Nitecki, Zbigniew H. <Zbigniew.Nitecki at tufts.edu<mailto: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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