Date: Mon, 19 Dec 2005 16:54:09 -0800
From: "John Cannon" <john@maths.usyd.edu.au>
To: wstein@math.ucsd.edu
Subject: Magma calculator
Cc: john@maths.usyd.edu.au

William,
 
This is to formally advise you that your permission to run a
general-purpose calculator based on Magma ends on Dec 31, 2005. This
was originally set up at your request so students in your courses at
Harvard could have easy access to Magma.
 
Note that this does NOT affect the use of Magma in your modular forms site.
Nor is it likely that we would withdraw permission for this use of Magma 
provided that Magma is properly acknowledged (as it has been in the past).
In fact we are encouraging the use of Magma as part of the backend in 
similar servers.

Your making a calculator available has been an interesting experiment
and we plan to continue it in modified form out of Sydney (at least
for for the time being). It would be appreciated if we could get a
copy of your scripts as this will reduce the amount of time the
calculator is down.
 
Please confirm receipt of this letter.
 
Wishing you a happy Christmas,
 
John