Feedback about this program (bug reports, requests for features, etc.) is welcome. If you find ePiX useful, please tell your colleagues about it.
Academics in general, and mathematicians in particular, depend on Free
software in their work. A good case can be made that proprietary
software is contrary to the academic ethic. Issues of access aside, if
one does not know what exactly went into a program, then one cannot
fully trust the results that come out, any more than one can trust
(for purposes of scientific publication) results of a commercial
testing lab. Access to the source code is not all that is required,
though. To promote the dissemination of information, access to
software should be free in the four senses laid out in the GNU General
Public License authored by the Free Software Foundation:
To run a program for any purpose
To study how the program works, and adapt it to your needs
To redistribute copies of the program
To improve the program, and release your improvements to the
public, so that the whole community benefits
Just as theorems are not licensed, I believe that software we use in our academic work should not be licensed. Releasing software under a standard commercial license agreement is (to me) the equivalent of publishing the statement of a theorem, while keeping the proof secret, and charging people for each citation of the theorem. Releasing source code alone, without giving users the freedom to modify it for their own needs, is analogous to publishing a proof, but forbidding readers from using the ideas of the proof in their own work.
The ultimate purpose of software is to allow us to be productive and creative. I hope that this modest program is, in conjunction with the much larger efforts of others (especially Donald Knuth, and the many people who have contributed to the authorship of LATEX and its many packages), useful to you in your mathematical work.
Please visit the Free Software Foundation, at
http://www.fsf.org
, to learn more about Free Software and how
you can contribute to its development and adoption.
Andrew D. Hwang <ahwang@mathcs.holycross.edu>
Current version: 0.8.x (see CHANGELOG for details)
Last Change: June 6, 2002