Hi Florent! On 2012-03-28, Florent Hivert <florent.hiv...@lri.fr> wrote: >> For parameter-less categories like Fields, I don't have a feeling for >> whether one should teach new users to use the idiom ``X in Fields`` or >> ``X in Fields()``. I tend to use the later mysefl. > > Speed could be a (not so important) argument.
Not so important??? I take speed very seriously. And by the way, testing containment is even faster if you assign Fields() to a constant, e.g. sage: FieldsCat = Fields() sage: QQ in Fields True sage: QQ in FieldsCat True sage: %timeit QQ in Fields 625 loops, best of 3: 11.4 µs per loop sage: %timeit QQ in Fields() 625 loops, best of 3: 4.14 µs per loop sage: %timeit QQ in FieldsCat 625 loops, best of 3: 1.86 µs per loop Cheers, Simon -- 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
