Re: [sage-support] Re: Sage installation on windows : browser cannot connect

2012-04-18 Thread Jean-Pierre Flori
There is some Sage meeting this afternoon in Paris. I have a Windows 7 installation on my laptop, I'll give a VirtualBox installation a try, maybe I'll be more lucky than last time. That was particularly painful to have people ready to try Sage on their computer at a previous meeting, but being

[sage-support] Re: Sage installation on windows : browser cannot connect

2012-04-18 Thread emil
If I make it bridged, what is the IP address I'd use? stop the sage notebook server (with Ctr-C) and type ifconfig. This should show you your IP address on the network. It should also show in the startup message of the notebook server. -- To post to this group, send email to

[sage-support] Re: Determining if a ring has any non-trivial idempotents

2012-04-18 Thread JamesHDavenport
I would doubt it very much. I imagine the same techniques as Fr\ohlich,A. Shepherdson,J.C., Effective Procedures in Field Theory. Phil, Trans. Roy. Soc. Ser. A 248(1955-6) pp. 407-432, can be used to construct a ring which has nontrivial idempotents iss we can determine membership in a

Re: [sage-support] Re: Determining if a ring has any non-trivial idempotents

2012-04-18 Thread David Loeffler
On 18 April 2012 15:50, diophan rdeberh...@gmail.com wrote: I'll check out the reference. If it makes the situation any better the ring is a quotient of a polynomial ring over a finite field. If it's a quotient of a one-variable polynomial ring, you can just factor the defining polynomial,

Re: [sage-support] Re: Determining if a ring has any non-trivial idempotents

2012-04-18 Thread diophan
It's multivariate (sorry I didn't specify), so being irreducible and having no non-trivial idempotents aren't equivalent. On Wednesday, April 18, 2012 4:04:04 PM UTC-4, David Loeffler wrote: On 18 April 2012 15:50, diophan rdeberh...@gmail.com wrote: I'll check out the reference. If it makes

Re: [sage-support] Importing Cython .so module

2012-04-18 Thread Emil
Hi Robert, thanks for taking an interest in my problem! I've been unwell, and could not respond sooner. I can't put an __init__.py file in the top-level /site-packages directory as far as I am aware, and I'm not sure that would be a sensible thing to do to my users... I think my original email