#10771: gcd and lcm for fraction fields
--------------------------------+-------------------------------------------
Reporter: SimonKing | Owner: AlexGhitza
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.7
Component: basic arithmetic | Keywords: gcd lcm fraction fields
Author: Simon King | Upstream: N/A
Reviewer: Marco Streng | Merged:
Work_issues: |
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Comment(by SimonKing):
The second failure can be triggered as follows:
{{{
sage: F(x) = 1/sqrt(2*pi*1^2)*exp(-1/(2*1^2)*(x-0)^2)
sage: G(x) = 1/sqrt(2*pi*n(1)^2)*exp(-1/(2*n(1)^2)*(x-n(0))^2)
sage: ((F(x)-G(x))^2).expand()
/mnt/local/king/SAGE/sage-4.6.2.alpha4/local/bin/sage-sage: Zeile 300:
18366 Speicherzugriffsfehler sage-ipython "$@" -i
}}}
Segmentation fault while expanding. I could imagine that `gcd==1` results
in an infinite loop.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10771#comment:17>
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