On Wed, May 25, 2011 at 5:53 PM, Mel <chemmyg...@gmail.com> wrote: > I'm having an issue with converting between p-adic and rational > numbers. > > Specifically, there are certain p-adic numbers that I cannot convert > to rationals. As an example, if 1+7^3+O(7^5) is a 7-adic integer with > capped relative precision 5, I cannot convert it to a rational. I get > the error "ValueError: Rational reconstruction of 344 (mod 16807) does > not exist."
When asking such questions, it is helpful to give code that can trivially pasted in that illustrates your problem. > > More generally, it seems that if the precision of the p-adic number is > O(p^n), and the p-adic number includes powers of p greater than n/2, > the number cannot be converted to a rational. > > Any info is appreciated. Thanks! > > -- > To post to this group, send email to sage-support@googlegroups.com > To unsubscribe from this group, send email to > sage-support+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/sage-support > URL: http://www.sagemath.org > -- William Stein Professor of Mathematics University of Washington http://wstein.org -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
