On Apr 20, 3:53 pm, bsdz <blai...@googlemail.com> wrote:
> Hi,
Hi Blair,
> Is anyone aware of an alternative to maxima's part function.
>
> http://maxima.sourceforge.net/docs/manual/en/maxima_6.html#IDX182
>
> It allows one to access any part of an algebraic expression using
> various indexes. A list of indexes uniquely defines any part of an
> expression such as a sum part or exponent.
>
> I ask because a while back I implemented a useful function but felt it
> was too slow because it had to constantly send requests to maxima's
> lisp interpreter.
The pynac switch is coming in Sage 4.0 and you should be able to do
things like that in Sage natively. There are certainly plans to play
with the expressin tree, but Mike Hansen can probably tell you how far
along that part of the code is.
> Thanks
> Blair
Cheers,
Michael
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