Mathematics tools

thank you again,  Zbigniew.  It has been a pleasure to get this enigma solved.

---------------------------------------------
Just to clarify to other people:  I´ve been using it in xampp package version 1.4.6 +  perl addon 1.4.5 which includes:

Apache HTTPD 2.0.50, MySQL 4.0.20, PHP 5.0.1 + 4.3.8 + PEAR + Switch, MiniPerl 5.8.3, mod_php 4.3.7, mod_ssl 2.0.49, Openssl 0.9.7d, PHPMyAdmin 2.5.7, Webalizer 2.01-10, Mercury Mail Transport System für Win32 und NetWare Systems v4.01a, FileZilla FTP Server 0.9.1, SQLite 3.0.4, ADODB 4.04, Zend Optimizer 2.5.3.

Perl 5.8.4, mod_perl 1.99_14.