Polar function plotter effect

[Bug Importer]

Recently, I needed a nice closed double loop. It would have been so easy to
play a bit with sin and cos in a function plotter with polar coordinates to
get that shape! So, I had to use a math program to output PS, convert with
gimp to PNG, import, and trace bitmap. Moreover, the thing was too thin, so
I took it and drew the thing on top of it myself. Please...

[Mercury (mercury13)]

Cool! A really mathematicians' way to draw nice thingies - make up a function, then plot it.
+1.

[Tom Davidson (tjd-mit)]

The 'Function plotter' claims to be able to work in polar co-ordinates, but I can't get it to work. It may be better to close this wishlist bug and file a new bug against that extension...

[su_v (suv-lp)]

The extensions 'Render > Function plotter' supports polar coordinates (and it works).

See also:
http://tavmjong.free.fr/INKSCAPE/MANUAL/html/Extensions-Render.html#Extensions-FunctionPlotter