From: msc_wdqn@jhunix.hcf.jhu.edu (Daniel Q Naiman)
Subject: Geometry package
Organization: Homewood Academic Computing, Johns Hopkins University, Baltimore, Md, USA
Lines: 11
Distribution: world
NNTP-Posting-Host: jhunix.hcf.jhu.edu

I am looking for a package which takes as inputs a set
of geometric objects defined by unions of convex polytopes
specified in some manner, say by inequalities and equalities,
and determines in some reasonable form things like
intersections, unions, etc. etc..

Does anyone know where I can find such a thing?

Dan Naiman
Department of Mathematical Sciences
Johns Hopkins University