[sage-devel] Re: Motivation for ElementMethods in categories

2013-09-17 Thread Peter Bruin
Hi all, Simon King (replying to my question) wrote: - Do the methods coming from ElementMethods always take priority over (override) those from the base classes? No, it is the other way around. Right, and if I now understand correctly, it is because Element.__getattr__() changes the

Re: [sage-devel] Re: not trusted anymore ?

2013-09-17 Thread Peter Bruin
Hello, Robert Bradshaw wrote, It's live, but you'll need to go to a closed ticket of yours and add ?force to the url (something like http://patchbot.sagemath.org/ticket/13657/?force ) so it picks up the 'resolution' field even though the page didn't change. (I'll run a script to update

[sage-devel] Re: Motivation for ElementMethods in categories

2013-09-14 Thread Peter Bruin
RingElement! This should clearly be fixed. Shouldn't there be a class SquareMatrix for methods like is_invertible() and determinant()? Thanks again, Peter Op vrijdag 13 september 2013 20:23:21 UTC+1 schreef Peter Bruin: Hello, A discussion was just started at http://trac.sagemath.org/ticket

[sage-devel] Motivation for ElementMethods in categories

2013-09-13 Thread Peter Bruin
Hello, A discussion was just started at http://trac.sagemath.org/ticket/15192about the reason why categories in Sage have a class ElementMethods. In this ticket, Julian RĂ¼th moved the method is_unit from RingElement to Rings().ElementMethods to fix a certain bug. I thought this wasn't the

Re: [sage-devel] Re: Products of permutations use nonstandard order of operation

2013-07-15 Thread Peter Bruin
Hi Marco and all, I had Darij's problem as well, and many others probably did as well. In a right action, I would prefer p(1) to give a warning. In a right action, I would want some notation where p is on the right, preferably 1^p (1 hat p). That would make sense (except that I don't

[sage-devel] Re: RFC: a good name the category of algebras that are not necessarily associative nor unital

2013-07-08 Thread Peter Bruin
, associative, unital, noetherian, lie, finite-dimensional, or whatever you like. But don't mention the *absence* of axioms! Best regards, Peter Bruin -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop

[sage-devel] Re: The 2013 Spies Prize winner is...

2013-06-25 Thread Peter Bruin
Gefeliciteerd, Jeroen! -- You received this message because you are subscribed to the Google Groups sage-devel group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to

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