Just for the record. The problem seems to be related to RIF. For the inexact ring RR, it works:
len(e.roots(ring=RR)) 13 len(e.real_roots()) 13 numeric approximations of the two missing roots are: 0.953956769342757, 0.957223630414975 This pair of roots is exactly the pair of most close roots among all. So it seems that a sign change is not detected. On Feb 18, 3:41 pm, zteitler <[email protected]> wrote: > I was not sufficiently careful in posting my polynomial e(x) and > apparently some bad line breaks and spaces were introduced. This reply > is to post a properly-wrapped copy of the polynomial. > > Zach Teitler -- 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 URL: http://www.sagemath.org
