[sage-devel] Re: All known bugs in Sage silently producing wrong answers
I would add 12080 Manin constant 10698 error in padic power series construction 8198 p-adic precision in vector multiplication Chris -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: All known bugs in Sage silently producing wrong answers
I'd like to add the resultant problem I posted to sage-devel yesterday. It sounds like it is an actual bug, but not filed. When my trac account gets approved I'll file a bug for it. On Mar 21, 2:56 pm, William Stein wrote: > Hi Proud Sage Developers, > > At the current Sage workshop some people (me, David Roe, Jen > Balakrishnan, etc.) have made a stopgap function and identified Trac > tickets describing "Bugs silently producing wrong answers". So far > they listed 7 of them:http://trac.sagemath.org/sage_trac/report/79 -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: All known bugs in Sage silently producing wrong answers
Hi, Here's one: sage: K. = NumberField(x-2/3) sage: K.is_prime_field() False The code is just a bit too naive: Source: def is_prime_field(self): r""" Return True if this ring is one of the prime fields `\QQ` or ` \GF{p}`. ... """ return False i.e. is probably just isn't implemented for number fields. Once one realises that the default function returns False if it is not defined in a subclass, it is possible to find other examples: sage: P. = QQ[x] sage: R. = P.quo(x-1) sage: R.is_field() True sage: R.is_prime_field() False --David -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org