#17791: allow RealSet construction from RealInterval
--------------------------+------------------------
Reporter: rws | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.6
Component: misc | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Changes (by rws):
* milestone: sage-6.5 => sage-6.6
Old description:
> The current restriction makes reuse of `RealInterval`s difficult and
> makes no sense anyway.
> {{{
> sage: ri=RealInterval(10,11)
> sage: RealSet(ri)
> ---------------------------------------------------------------------------
> /home/ralf/sage/local/lib/python2.7/site-packages/sage/sets/real_set.pyc
> in __classcall__(cls, *args)
> 634 intervals.extend(arg._intervals)
> 635 else:
> --> 636 raise ValueError(str(arg) + ' does not determine
> real interval')
> 637 intervals = RealSet.normalize(intervals)
> 638 return UniqueRepresentation.__classcall__(cls, intervals)
>
> ValueError: 11.? does not determine real interval
> }}}
New description:
The current restriction makes reuse of `RealInterval`s difficult and makes
no sense anyway.
{{{
sage: ri=RealInterval(10,11)
sage: RealSet(ri)
---------------------------------------------------------------------------
/home/ralf/sage/local/lib/python2.7/site-packages/sage/sets/real_set.pyc
in __classcall__(cls, *args)
634 intervals.extend(arg._intervals)
635 else:
--> 636 raise ValueError(str(arg) + ' does not determine
real interval')
637 intervals = RealSet.normalize(intervals)
638 return UniqueRepresentation.__classcall__(cls, intervals)
ValueError: 11.? does not determine real interval
}}}
Not to be confused with #17799 which is about
`sage.sets.real_set.RealInterval`.
--
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Ticket URL: <http://trac.sagemath.org/ticket/17791#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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