[OS X TeX] parametricplot in pstricks

Mon Sep 10 11:27:09 EDT 2018

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:

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/

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