This is xtrcode v.0.2 (Jan 12, 2000) To install, simply move the Perl script xtrcode to an appropriate directory and make it executable. You may have to change the first line of xtrcode to fit your Perl installation; the program has been tested with Perl 5.005_03. xtrcode.tex contains a short documentation of the usage. Just run it through latex. You can try the example in it with xtrcode.tex itself. xtrcode is released under the GNU Public License. v.0.2 is the first public release. Thomas Ruedas ruedas@geophysik.uni-frankfurt.de http://www.geophysik.uni-frankfurt.de/~ruedas/progs.html