Actually how does this relate to the following wiki page:
https://github.com/sympy/sympy/wiki/Algebras-in-SymPyCore
On 02.05.2011 19:57, Aaron S. Meurer wrote:
I agree that Frederik's idea is an interesting one, but we would need to
have other people who understand it well if we were to attempt to
implement it. If you could write something up on the wiki, it would go a
long way towards this.
Aaron Meurer
On May 2, 2011, at 11:49 AM, Haz wrote:
A summary would indeed help. I have another fear though, that this
idea (while enticing) is not largely understood (afaik). This puts the
burden of re-working SymPy into mainly your hands, Fredrik, where
patching SymPy to work with the new assumptions can be jointly tackled
(evidenced by the vast number of branches that exist for doing just that).
On Mon, May 2, 2011 at 1:42 PM, Tom Bachmann <ness...@googlemail.com
<mailto:ness...@googlemail.com>> wrote:
On 2 Mai, 18:26, Fredrik Johansson <fredrik.johans...@gmail.com
<mailto:fredrik.johans...@gmail.com>>
wrote:
> On Mon, May 2, 2011 at 5:46 PM, Haz <christian.mu...@gmail.com
<mailto:christian.mu...@gmail.com>> wrote:
> > Tom: Apologies, but I'm having trouble inferring what you
github username is
> > -- where is the branch?
> > Fredrik: I like the idea, but that seems like a massive shift
in the SymPy
> > core that I don't feel is possible in the time frame that the
assumptions
> > need to be fixed in.
>
> I don't think it's necessarily that much work. The only essential
> thing that needs to be done is to provide every expression
object with
> a reference to its parent algebra, and to overwrite sympification to
> convert inputs to have the same parent. Everything else can be
> implemented gradually. The major obstacles ought to be caching
and the
> current assumptions -- which need to go anyway.
>
Would it be too much to ask for a coherent outline of this proposal on
the wiki? (By coherent I don't mean "less confused" but "more
complete".) What you describe indeed sounds nice and clean to me, but
I have difficulty piecing things together (in particular I know e.g.
nothing about sage).
Tom
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