#4000: [with patch, needs work] Implement QQ['x'] via Flint ZZ['x'] +
denominator
------------------------------+---------------------------------------------
Reporter: malb | Owner: somebody
Type: enhancement | Status: new
Priority: major | Milestone: sage-wishlist
Component: basic arithmetic | Keywords:
Reviewer: | Author: Martin Albrecht
Merged: |
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Comment(by spancratz):
Hello Mike,
Thank you for fixing the unpickling problem!
About the second problem, the one in ``qqbar.py``, are you saying that the
following code
{{{
sage: x = polygen(AA)
sage: r = QQbar.polynomial_root(x^5 - x - 1, CIF(RIF(0.1, 0.2),
RIF(1.0, 1.1))); r
sage: r.real().minpoly()
}}}
now executes without problems on your setup? On mine, it still crashes
with a segmentation fault. I've uploaded the complete traceback to
http://sage.pastebin.com/m5249e09. I still seems strange to me that the
traceback doesn't seem to contain methods that this patch modifies
directly.
The other difference you mention is no problem, of course. That's because
I have taken care to ensure that methods returning results that are only
defined up to units return monic normalisations.
Many thanks again for taking a look at this patch,
Sebastian
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4000#comment:28>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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