pst-math: PostScript extension for mathematical functions: The macros for random numbers cannot be used with xelatex! Use lualatex instead, it has an buildin postscript hvoss@tug.org %% This program can be redistributed and/or modified under the terms %% of the LaTeX Project Public License Distributed from CTAN archives %% in directory CTAN:/macros/latex/base/lppl.txt. %% $Id: README 741 2023-07-03 17:53:43Z herbert $