#8150: various fixes in sage/groups/ and sage/interfaces needed for GAP 4.4.12
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Reporter: dimpase | Owner: joyner
Type: defect | Status: new
Priority: major | Milestone: sage-4.3.2
Component: group_theory | Keywords:
Author: Dima Pasechnik | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by robertwb):
{{{# random order}}} is preferable to {{{#not tested}}}. I think a lot of
these could be tested in sensible ways. For example, if word_problem
returned a list of *tuples* rather than lists (which is more natural),
then one could do
{{{
sage: w = word_problem([a*b,a*c], b*c)
sage: set(w) == set([(a*b, 1), (a*c, 1)])
}}}
Even better,
{{{
sage: w = word_problem([a*b,a*c], b*c); w # random solution
[[a*b, 1], [a*c, 1]]
sage: w == prod(g^e for g,e in w)
True
}}}
which demonstrates that w is indeed a solution.
Also, it's clearer to us any and all instead of reduce, if you need to.
Having huge blocks of {{{#not tested}}} should be avoided unless there's
no clean way around it.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8150#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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