On Mar 12, 2008, at 10:01 , William Stein wrote:
>
> On Wed, Mar 12, 2008 at 9:58 AM, Joel B. Mohler <[EMAIL PROTECTED]
> > wrote:
>>
>> On Wednesday 12 March 2008 10:55, William Stein wrote:
>>>> I'm a bit underwhelmed with lie as a software engineering
>>>> project. It's
>>>> one of the most opaque hunks of code I've ever looked at. I'd
>>>> like to
>>>> see this be faster than a p-expect interface too. Lie doesn't
>>>> have a
>>>> library and it doesn't look like much fun to make such an interface
>>>> either. Although, it is a very small package so it wouldn't be
>>>> impossible to just beat it into shape. I'm curious if other
>>>> people have
>>>> thought about this.
>>>
>>> Is it actively developed anymore?
>>>
>>> It's still not in Sage for a reason, though at the moment
>>> I'm not sure exactly what that reason is. (Maybe just
>>> lack of demand.)
>>
>> I don't know for sure about it's status, but it's web page seems to
>> acknowledge that 2000 was about the end for any serious work. It
>> seems to be
>
> Yep. 2000 is the most recent change date on any of the files
> (except one).
>
>> the canonical computational reference for these topics for at least
>> a few
>> people. I suppose that means it might be a worthwhile project to
>> make a list
>> of the main features/algorithms and make sure that sage either
>> includes them
>> or exceeds them so that we can state that sage is a viable
>> migration path.
I just tripped over this "package": AllTypes (<http://
www.alltypes.de>). It's entirely web-based, and it does not appear to
be open, but it seems to be kept up to date. It's referenced in
"Algorithmic Lie Theory for Solving Ordinary Differential
Equations" by F. Schwarz.
I don't think AllTypes is Lie-specific, but it might be worth finding
out what's behind it, and if there's anything there to be "shared".
The website gives you a "signup" option; filling in the details gets
you a response with a password, and you can use it (again: seems to be
only web-based).
Justin
--
Justin C. Walker, Curmudgeon-At-Large
Institute for the Absorption of Federal Funds
--------
If you're not confused,
You're not paying attention
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