That means when the length of bite is more than 62, Sage will change its type of data or the storage method..Right?
在 2018年4月16日星期一 UTC+8下午9:15:41，vdelecroix写道： > > On 16/04/2018 15:09, Vincent Delecroix wrote: > > On 16/04/2018 13:15, John Cremona wrote: > >> On 16 April 2018 at 12:04, Vincent Delecroix <20100.d...@gmail.com > <javascript:>> > >> wrote: > >> > >>> On 16/04/2018 09:21, fanx...@iie.ac.cn <javascript:> wrote: > >>> > >>>> I have constructed a big prime field: > >>>> > >>>>> p=68235916425158872634653027 > >>>>>> F=GF(p) > >>>>>> > >>>>> > >>> Here is what I get > >>> > >>> sage: p = 68235916425158872634653027 > >>> sage: F = GF(p) > >>> Traceback (most recent call last): > >>> ... > >>> ValueError: the order of a finite field must be a prime power > >> > >> > >> OK, but apart from typos in the report there is a real bug: > >> > >> sage: p=next_prime(68235916425158872634653027) > >> sage: F=GF(p) > >> sage: E2=GF(p^6) > >> > >> AttributeError: 'int' object has no attribute 'divisors' > > > > reason: type inconsistency in the output of K.degree() > > > > sage: type(GF(next_prime(2^62)^2).degree()) > > <type 'sage.rings.integer.Integer'> > > > > versus > > > > sage: type(GF(next_prime(2^63)^2).degree()) > > <type 'int'> > > which is a consequence of this one > > sage: R1 = PolynomialRing(Zmod(next_prime(2^62)), 'x') > sage: type(R1.an_element().degree()) > <type 'sage.rings.integer.Integer'> > > versus > > sage: R2 = PolynomialRing(Zmod(next_prime(2^63)), 'x') > sage: type(R2.an_element().degree()) > <type 'int'> > > Vincent > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
