Re: [sage-support] Re: Help with understanding and setting up Sage Cell Server

2014-07-03 Thread William Stein
On Thu, Jul 3, 2014 at 8:28 AM, Jole Bradbury wrote: > Is SageMathCloud a better way to do this sever thing? Can you answer any of > my other questions? I'm sorry -- I probably shouldn't have made any remarks in this thread. I was only specifically commenting on the issue (output printing) that

[sage-support] Re: Possible bug in is_locally_represented_number in the quadratic forms package

2014-07-03 Thread Dominique Laurain
One SUFFICIENT condition for equivalence between "f represented in Q" and "f represented in Z" is given by Davenport-Cassels Lemma in J.P.Serre ' A course of Arithmetic' book. (note : wikipedia page about it needs rewriting): given f(X) = sum(aij Xi Xj) a definite positive quadratic form, with

[sage-support] Re: Possible bug in is_locally_represented_number in the quadratic forms package

2014-07-03 Thread Dominique Laurain
Good question Edna:-) I had the same question many months ago, when I was entertained by the 15-theorem and one Bhargava's paper. I have not skipped the subject forever... just interested now about geometry. You can be sure I would be very interested to know a polynominal time giving all

[sage-support] Re: Possible bug in is_locally_represented_number in the quadratic forms package

2014-07-03 Thread Dominique Laurain
8 minutes (19:20) Good question Edna.!!...:-) I had the same question many months ago, when I was entertained by the 15-theorem and one Bhargava's paper. I have not skipped the subject forever... just interested now about geometry. You can be sure I would be very interested to know a

Re: [sage-support] Re: Help with understanding and setting up Sage Cell Server

2014-07-03 Thread Jole Bradbury
Is SageMathCloud a better way to do this sever thing? Can you answer any of my other questions? On Thursday, July 3, 2014 1:59:50 AM UTC-4, William wrote: > > On Wed, Jul 2, 2014 at 10:43 PM, Nils Bruin > > wrote: > > On Wednesday, July 2, 2014 10:14:44 AM UTC-7, Jole Bradbury wrote: > >> > >