On Nov 22, 11:34 pm, Robert Bradshaw <[EMAIL PROTECTED]>
wrote:
> On Nov 22, 2008, at 11:09 PM, Tim Lahey wrote:
<SNIP>
> I only know a tiny bit about symbolic integration, but mabshoff's
> statement that it will be a long path is certainly an understatement.
> What I would like to see happen soon is some of the basic cases
> solved in our own code, and then passing off to some other library
> for the harder cases. Sage isn't about about re-inventing the wheel,
> and I hope that something like SymPy will become mature enough to
> handle all the really complicated stuff. In any case the bottleneck
> of pexpect is not as important for the "hard" cases (though perhaps
> the difficulty of building dependancies like lisp is good motivation
> to have more native code).
Lisp is not too much a concern of mine here, but more that anything
using pexpect to this day still breaks on some boxen and then it is
very hard to debug and fix.
My personal point of view is also that we will build up a much larger
and stronger regressions suite than anything else open source out
there. Maxima's integration test suite is a couple hundred integrals
and as we have seen in the past often enough if one bug is fixed
something else pops up on the other end. It seems like attempting to
stretch a bed cover that is too small onto a mattress - if you cover
one end ..... I also believe that Sympy is a pretty good long term bet
here even though it might not have all the algebraic bits in the long
term as well implemented as it needs. But I can see cross pollination
between Sympy and Sage on a code level while I am not seeing much
going on between lisp and Python.
> That being said, if someone does write a full symbolic integration
> suite natively in Sage, that would be great.
Yep. It will come one day :)
> - Robert
Cheers,
Michael
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