Hello,
You can find documantation at:
http://www.cs.dartmouth.edu/gnuplot_info.html
http://www.usf.uni-osnabrueck.de/~breiter/tools/gnuplot/index.en.html
http://www.dfv.rwth-aachen.de/doc/gnu/gnuplot/gnuplot.html
http://www.delorie.com/gnu/docs/gnuplot/gplot_toc.html
http://www.geocities.com/SiliconValley/Foothills/6647/
http://web.math-cs.uni.edu/cs/Help/gnuplot/TOC.html
http://brian.me.tufts.edu/GnuplotInLaTeX/
http://users.ece.gatech.edu/~schooley/gnuplot.html
Gnuplot 3.7 is available at:
ftp://ftp.gnuplot.vt.edu/pub/gnuplot/
Manuals in Postscript format are included.
Regards,
Christophe
--
Christophe Jean
Institut d'Astrophysique, Université de Liège
Avenue de Cointe, 5
B-4000 Liège BELGIUM