On 15-Jan-08, at 8:28 AM, William Stein wrote:
> > On Jan 15, 2008 7:39 AM, Enrique Gonzalez Jimenez > <[EMAIL PROTECTED]> wrote: >> >> Hi, >> >> Let C be a plane conic given by an equation of the form >> C:Ax^2+Bxy+Cy^2+Dx+Ey+F=0 where A,B,C,D,E,F in ZZ. >> >> Is there a package or function in SAGE that compute C(ZZ)? > > John Cremona -- is there code in your mwrank package that could do > this?? I have recently integrated code to do this for a projective model over QQ, using routines of Denis Simon (qfsolve.gp) and Paul van Wamelen. I believe this helps answer the problem over ZZ -- is it not just a matter of scaling projective points? This code is close to being ready for Sage, and I could cut a pre- production patch if that would help. In fact, I would appreciate someone using the code. Nick --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
