moved src/flatten.lisp to share/algebra/charsets/ and related changes



On Wed, 2005-02-23 at 12:43, C Y wrote:
> Question - do we preserve the nset filename or make this the new
> set.lisp?

I think keeping the file nset.lisp would be best.

> Exciting stuff!  Glad to see such progress.  How do we stand on 5.9.2
> issues, by the way?  Are we getting close to a release point yet?

Yes, we are getting close. I will post my TODO for 5.9.2 in the near
future.

> Cheers,
> CY
> 
> P.S. - I notice the docs for nset mention a Kronecker delta function is
> defined there.  There are lots of physics related problems that just
> loooove to throw in Kronecker deltas - does it make sense/is it
> workable to make Maxima more aware of how to work with delta functions
> for things like integration?  (IIRC Maxima currently doesn't know much
> about how to use them?)

Adding the delta functional and related items is an appealing idea, but
it would be a big project to do it correctly. 

--Jim