Dear user, CARAT is a package for solving certain problems in mathematical crystallography. It is distributed via Lehrstuhl B fuer Mathematik RWTH-Aachen Prof. Plesken Pontdriesch 10-16 52064 Aachen Germany email: carat@momo.math.rwth-aachen.de NOTE: CARAT was developed for crystallographic groups in dimensions up to 6. Most algorithms also work in higher dimensions. However, integer overflow is not trapped in general. INSTALLATION: Just edit the Makefile in the directory you installed CARAT in, and change the variables CFLAGS TOPDIR according to your needs. Some additional explanations/examples are given there. Afterwards just do % make or to be sure everything is made from scratch: % make clean ; make If you have any problems installing CARAT, please feel free to contact me under carat@momo.math.rwth-aachen.de Faithfully yours Dominik Bernhardt