#12105: RuntimeError: Segmentation fault with nth_root
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Reporter: lfousse | Owner: jason, jkantor
Type: defect | Status: new
Priority: major | Milestone:
Component: numerical | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by johanbosman):
The bug is in line 4708 of sage/rings/real_mpfr.pyx:
{{{
if algorithm == 0 and fld.__prec * n < 10000:
}}}
The result of that multiplication as a signed int may become negative and
actually does so in your example.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12105#comment:1>
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