# HeLP

Hertweck-Luthar-Passi method.

Version 3.5
Released 2019-12-20

This project is maintained by Andreas Bächle, Leo Margolis

    README file for the HeLP' GAP4 package

archive files
HeLP-x.x.tar.gz

and unpack it using
gunzip HeLP-x.x.tar.gz; tar xvf HeLP-x.x.tar.

(Note that if you use a browser like netscape' for downloading the
archive file the gunzip' step above may already be done by the browser,
although the name of your file may still have the misleading .gz'
extension.)

Do this preferably (but not necessarily) inside the pkg' subdirectory
of your GAP 4 installation. It creates a subdirectory called help'.

The package uses the software 4ti2  and/or normaliz and hence is only properly working
on systems which have at least one of the two installed. normaliz
may be installed via the GAP-package NormalizInterface,
see the documentaion of this package for details.
http://www.4ti2.de.
To interact with these external softwares the package makes use of the
4ti2-Interface and normaliz-Interface written by S. Gutsche, C. Söger and M. Horn,
The 4ti2-Interface in turn uses the package IO, that needs a C-part to be compiled;
see the readme-file or the documentation of the IO-package for details.

This completes the installation of the package.

E-mail us if there are any questions, remarks, suggestions. Also, we
would like to hear about applications of this package.

Andreas Bächle, e-mail: ABachle@vub.be
Leo Margolis, e-mail: Leo.Margolis@vub.be