pst-tools: helper functions -- psPrintValue on PostScript level -- \psGetElement of a comma separated list Save the files pst-tools.sty|pro|tex in a directory, which is part of your local TeX tree. The pro file should go into $TEXMF/dvips/pstricks/ Then do not forget to run texhash to update this tree. For more information see the documentation of your LATEX distribution on installing packages into your local TeX system or read the TeX Frequently Asked Questions: (http://www.tex.ac.uk/cgi-bin/texfaq2html?label=instpackages). pst-tools needs pst-plot (pstricks-add) and pstricks, which should be part of your local TeX installation, otherwise get it from a CTAN server, http://mirror.ctan.org PSTricks is PostScript Tricks, the documentation cannot be run with pdftex, use the sequence latex->dvips->ps2pdf. %% This program can be redistributed and/or modified under the terms %% of the LaTeX Project Public License Distributed from CTAN archives %% in directory macros/latex/base/lppl.txt. %% $Id: README 286 2010-02-11 09:40:41Z herbert $ hvoss@tug.org