B.5 Plotting parametric functions
The syntax used for plotting parametric functions differs between gnuplot and Pyxplot. Whereas parametric plotting is enabled in gnuplot using the set parametric command, in Pyxplot it is enabled on a per-dataset basis by placing the keyword parametric before the algebraic expression to be plotted:
gnuplot> set parametric
This makes it straightforward to plot parametric functions alongside non-parametric functions. For more information, see Section 8.6.