Qhull, Copyright (c) 1993-1995       The National Science and Technology Research Center for        Computation and Visualization of Geometric Structures                        (The Geometry Center)                       University of Minnesota                       1300 South Second Street                      Minneapolis, MN  55454  USA                       email: qhull@geom.umn.eduThis software is copyrighted as noted above.  It is free software andmay be obtained via anonymous ftp from geom.umn.edu.  It may be freelycopied, modified, and redistributed under the following conditions:1. All copyright notices must remain intact in all files.2. A copy of this file (COPYING.txt) must be distributed along with any   copies which you redistribute; this includes copies which you have   modified, or copies of programs or other software products which   include this software.3. If you modify this software, you must include a notice giving the   name of the person performing the modification, the date of   modification, and the reason for such modification.4. When distributing modified versions of this software, or other   software products which include this software, you must provide   notice that the original source code may be obtained as noted   above.5. There is no warranty or other guarantee of fitness for this   software, it is provided solely "as is".  Bug reports or fixes may   be sent to qhull_bug@geom.umn.edu; the authors may or may not act   on them as they desire.