error function

From: "Mauricio Cafiero" <catchcaf &$at$& email.msn.com>
Subject: error function
Date: Wed, 16 Oct 2002 01:29:55 -0700

hello:
     I was wondering if anyone could point me towards accurate code for the
 F0 (or error) function and its derivative.
 thanks
 Mauricio Cafiero
 Doctoral Candidate: Theoretical and
                                 Computational
                                 Quantum Chemistry
 University Of Arizona