On Fri, May 14, 2010 at 10:57:16AM -0700, Bruce wrote:
> This returns False.
>
> R = CartanType("D4xA5")
> R.is_crystalographic()
>
> This seems to me to be the wrong answer.
> Is there something I've missed?
Thanks for the report! This is definitely a bug; or let's say a
missing feature: the class:
sage.combinat.root_system.type_reducible.CartanType
is missing an is_crystalographic method doing the obvious
thing. Please open a ticket on http://trac.sagemath.org/sage_trac/
(see the instructions there). A patch is even more welcome :-)
Thanks again,
Cheers,
Nicolas
--
Nicolas M. Thiéry "Isil" <[email protected]>
http://Nicolas.Thiery.name/
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