**Experiments in toric geometry
and lattice polytopes**

Winfried Bruns (wbruns@uos.de)

The
software package ToricExp contains algorithms for the creation and
investigation of lattice polytopes and related objects. The executable programs
aim at finding (counter)examples to open questions or conjectures on smooth
projective toric varieties.

Except for
the h-vector computation, the library contains the algorithms of Normaliz
in an independent implementation plus many more functions. To use the
functionality of the package completely, you must also install Normaliz.

The library
on which the executables are based is presently not sufficiently documented for
use by others (sorry). I hope it can be converted into a well-structured piece
of software soon. See documentation for the use of
the executables.

I am
distributing the software under the GPL.

Download
the package and unzip it in a directory of your
choice. The package contains a makefile. Alternatively you can easily compile
the programs yourself by gcc. (I have not tried other C compilers.)

Upload:
Version 1.2, October 9, 2011

For the
mathematical background see

W. Bruns
and J. Gubeladze. Polytopes,
rings and K-theory, Springer 2009

W. Bruns, The quest for counterexamples in toric geometry.
Preprint (also contained in the package)