#13314: segmentation fault with roots over ComplexField
------------------------+---------------------------------------------------
Reporter: zimmerma | Owner: burcin
Type: defect | Status: new
Priority: major | Milestone: sage-5.3
Component: calculus | Keywords:
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
------------------------+---------------------------------------------------
this was reported to me by Benjamin Dadoun:
{{{
sage: CC=ComplexField(128)
sage: z=polygen(CC, 'z')
sage: p=340282366920938463463374607431768211457*z^84 -
446662175392119146634315\
708974074167296*z^80 + 279189840125316599983095153558720348160*z^76 -
110522928\
999596165272398266482588385280*z^72 +
31087466142071580858231009754176552960*z^\
68 - 6606701181888932299640001500276588544*z^64 +
11012193014312756111509855712\
98443264*z^60 - 147498447216213728441335387395194880*z^56 +
1613414321773705176\
1322600788131840*z^52 - 1456690062677843407408776850964480*z^48 +
1092619146982\
48556477361418141696*z^44 - 6829504668478678587441535778816*z^40 +
355736441058\
167833075415777280*z^36 - 15393873200469425036030115840*z^32 +
5498322942774330\
90197422080*z^28 - 16038265915694612515651584*z^24 +
375931794881970935169024*z\
^20 - 6911153168471496130560*z^16 + 95997158355731169280*z^12 -
947428403886210\
560*z^8 + 5921977682886976*z^4 - 17626570956801
sage: p.roots(ring=CC)
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call
last)
/users/caramel/bdadoun/Desktop/ceval/<ipython console> in <module>()
/usr/local/sage-5.1-linux-64bit-
ubuntu_12.04_lts-x86_64-Linux/local/lib/python2\
.7/site-packages/sage/rings/polynomial/polynomial_element.so in
sage.rings.poly\
nomial.polynomial_element.Polynomial.roots
(sage/rings/polynomial/polynomial_el\
ement.c:31093)()
/usr/local/sage-5.1-linux-64bit-
ubuntu_12.04_lts-x86_64-Linux/local/lib/python2\
.7/site-packages/sage/libs/pari/gen.so in sage.libs.pari.gen.gen.polroots
(sage\
/libs/pari/gen.c:35318)()
RuntimeError: Segmentation fault
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13314>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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