[OS X TeX] parametricplot in pstricks

[Nitecki, Zbigniew H.]

My apologies.  You are right—I thought I was getting the line using either one, but when I replaced cos (degrees) with COS(radians), the line curved.
MY BAD!

Z

Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155

telephones:
my office     (617) 627-3843
dept. off.    (617) 627-3234
dept. fax    (617) 627-3966

http://sites.tufts.edu/znitecki/

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

----------- Please Consult the Following Before Posting -----------
TeX FAQ: http://www.tex.ac.uk/faq
List Reminders and Etiquette: https://sites.esm.psu.edu/~gray/tex/
List Archives: http://dir.gmane.org/gmane.comp.tex.macosx
               https://email.esm.psu.edu/pipermail/macosx-tex/
TeX on Mac OS X Website: http://mactex-wiki.tug.org/
List Info: https://email.esm.psu.edu/mailman/listinfo/macosx-tex

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://email.esm.psu.edu/pipermail/macosx-tex/attachments/20180910/cae0955e/attachment.html>