Collects together examples that have been posted to the
PSTricks mailing list, together with many additional features
for the basic pstricks, pst-plot and pst-node, including:
bugfixes; new options for the pspicture environment; arrows;
braces as node connection/linestyle; extended axes for plots
(e.g., logarithm axes); polar plots; plotting tangent lines of
curves or functions; solving and printing differential
equations; box plots; matrix plots; and pie charts. The package
makes use of PostScript routines provided by pst-math.

Homepage:
https://ctan.org/pkg/pstricks-add
