Maike, the trick is that integral points were only put into Sage in version 3.1.1. You must be looking at a more recent version of the reference manual.
THere should be more elliptic curve goodies in 3.1.2, out any day now. As the integral points curve is all new, I would very much like someone to put it through its paces, so I hope you do that! I know that it runs ok on all the curves in the (large) database, conductors up to 130000. (I would recommend installing the optional large elliptic curve database since then you get not only all the curves but also their ranks and generators directly.) John Cremona 2008/9/3 Maike <[EMAIL PROTECTED]>: > > Hi, > > I'm running Version 3.0.5 of Sage, and I just discovered the huge > elliptic curve functionality in the Sage reference manual. However, my > Sage doesn't know most of these nice functions. For example, > > sage: E=EllipticCurve([0,0,1,-7,6]) > sage: P1=E.point((2,0)); P2=E.point((-1,3)); P3=E.point((4,6)) > sage: a=E.integral_points([P1,P2,P3]); a > > gives me an error "EllipticCurve_rational_field' object has no > attribute 'integral_points'", although the code is copied directly > from the reference manual. > > Something like "import > sage.schemes.elliptic_curves.ell_rational_field" doesn't solve the > problem. > > What's the trick? Do I have to install/import extra packages or is > there anything else I've missed? > > Thanks! > Maike > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
