#10470: Listing an infinite vector space just hangs
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Reporter: rbeezer | Owner: jason, was
Type: defect | Status: new
Priority: minor | Milestone: sage-4.6.2
Component: linear algebra | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Asking for a list of elements in an infinite vector space does not raise
an error, but requires a Ctrl-C to get back the command-line.
{{{
sage: V=QQ^2
sage: V
Vector space of dimension 2 over Rational Field
sage: V.list()
<hang>
}}}
Of course, finite examples work properly:
{{{
sage: V=GF(3)^2
sage: V.list()
[(0, 0), (1, 0), (2, 0), (0, 1), (1, 1), (2, 1), (0, 2), (1, 2), (2, 2)]
}}}
Maybe this should be addressed in the module code, I have not looked into
the cause much. Perhaps a fix could be as simple as having a non-zero
dimension with an infinite base ring throwing an error?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10470>
Sage <http://www.sagemath.org>
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