On Tue, Mar 22, 2011 at 10:24:52AM -0700, Christian Stump wrote:
> is CoxeterGroup broken, or is just something wrong on my computer with
> the chevie package?
>
> sage: W = CoxeterGroup(['A',4])
> ...
> AttributeError: 'builtin_function_or_method' object has no attribute
> 'sage'
Hmm. It's a bug which apparently was introduced by #9032 in
4.6.2. This patch adds an alias N -> numerical_approx for each and
every Sage object:
sage: 13.N()
13.0000000000000
sage: x = gap3(13)
sage: x.N()
13.0000000000000
In the CoxeterGroup code, N was overriding the field N of the gap3
record representing the Coxeter group. I worked around this by using
x.__getattr__("N"). This seems to work. Pushed.
Cheers,
Nicolas
--
Nicolas M. Thiéry "Isil" <nthi...@users.sf.net>
http://Nicolas.Thiery.name/
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