#7160: comparison with quadratic number field elements needs work
----------------------------------------------+-----------------------------
Reporter: mhansen | Owner: davidloeffler
Type: defect | Status: needs_review
Priority: major | Milestone: sage-5.10
Component: number fields | Resolution:
Keywords: sd35 | Work issues: doctest failures
Report Upstream: N/A | Reviewers:
Authors: Mike Hansen, Burcin Erocal | Merged in:
Dependencies: | Stopgaps:
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Changes (by vdelecroix):
* status: needs_work => needs_review
Old description:
> {{{
> sage: I^2
> -1
> sage: bool(I^2 < 0)
> True
> sage: bool(I^2 > 0)
> True
> }}}
New description:
{{{
sage: I^2
-1
sage: bool(I^2 < 0)
True
sage: bool(I^2 > 0)
True
}}}
Apply:
- trac_7160-doctest.patch
--
Comment:
There are no example which deals with the symbolic ring... that's why I
suggested to add some doctest here. See the proposition in the patch.
Nevertheless, I found stupid the following behavior (or at least
confusing)
{{{
sage: I**2 == -1
-1 == -1
sage: (I+4)**4 > 0
-4 > 0
}}}
apply trac_7160-doctest.patch
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7160#comment:23>
Sage <http://www.sagemath.org>
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