#16239: ZZ in the wrong category
-------------------------------------+-------------------------------------
Reporter: tscrim | Owner: sage-combinat
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.3
Component: categories | Resolution:
Keywords: integer ring, | Merged in:
category | Reviewers:
Authors: Travis Scrimshaw | Work issues:
Report Upstream: N/A | Commit:
Branch: | 1b4b7c61d7a6b1c578be283613bf9cc63c7f9b28
public/categories/fix_ZZ-16239 | Stopgaps:
Dependencies: |
-------------------------------------+-------------------------------------
Comment (by vdelecroix):
Replying to [comment:11 tscrim]:
> I'm hoping to not open a can of worms, but technically `RDF`, `CDF`,
`RR`, `CC` are not infinite sets as they have a ''fixed'' finite
precision. Although this would be somewhat surprising for beginners. Plus
if we ignore this, we could make a category for char 0 fields, which IMO
is a useful distinction and we make as a join `Fields() &
Sets().Infinite()` (plus these "fields" already have worse abuses). But
definitely another ticket.
You are right for `RDF` and `CDF` but for `RR` and `CC`, technically,
these are infinite: the mantisse is finite but the exponent is arbitrary
precision (because of mpfr). And again, technically speaking these are not
fields ;-)
--
Ticket URL: <http://trac.sagemath.org/ticket/16239#comment:12>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.
