[sage-devel] Re: Things I miss from Maple in Sage

2008-08-25 Thread William Stein
On Mon, Aug 25, 2008 at 10:48 PM, Tim Lahey <[EMAIL PROTECTED]> wrote: > > On Aug 26, 2008, at 1:43 AM, William Stein wrote: > >> >> On Mon, Aug 25, 2008 at 10:28 PM, Tim Lahey <[EMAIL PROTECTED]> wrote: > >>> It's the "programatically" part that makes it a bit more difficult. >>> so imagine doing

[sage-devel] Re: Proposal for inclusion of GINAC/pynac-0.1 in Sage.

2008-08-25 Thread Robert Bradshaw
On Aug 25, 2008, at 8:35 AM, Gary Furnish wrote: > I've been trying to get an answer for this question for the last few > weeks: Is the plan to extend ginac (write algorithms in C) or to > extend sage (write new algorithms in Sage) using cython/python? I don't think this was addressed in the ema

[sage-devel] Re: Proposal for inclusion of GINAC/pynac-0.1 in Sage.

2008-08-25 Thread mabshoff
+1 from me to include Pynac/GiNaC in Sage, Martin Albrecht asked about the Windows porting issue: I looked at the GiNaC code and it is very clean C++. The maintainer is willing to merge MSVC related patches where needed, i.e. export statements for the symbols we need. I am not aware of any other

[sage-devel] Re: Proposal for inclusion of GINAC/pynac-0.1 in Sage.

2008-08-25 Thread Ondrej Certik
On Tue, Aug 26, 2008 at 12:49 AM, William Stein <[EMAIL PROTECTED]> wrote: > >> BTW, one important warning: ginac and sympycore are missing >> assumptions and sympy only has very trivial ones, like positive, >> negative, integer, even, odd, etc. This is really important for any >> nontrivial thing

[sage-devel] Re: Proposal for inclusion of GINAC/pynac-0.1 in Sage.

2008-08-25 Thread William Stein
On Mon, Aug 25, 2008 at 11:29 PM, Ondrej Certik <[EMAIL PROTECTED]> wrote: > > On Tue, Aug 26, 2008 at 12:49 AM, William Stein <[EMAIL PROTECTED]> wrote: >> >>> BTW, one important warning: ginac and sympycore are missing >>> assumptions and sympy only has very trivial ones, like positive, >>> nega

[sage-devel] Re: Manipulating diff. eqs. in Mathematica using pattern matching

2008-08-25 Thread Ondrej Certik
>>> I think it's just about getting people to fix it. There are many >>> people around who can fix Python/Cython and a little less (I guess) >>> who can fix C++ and C. But a lot less who can fix lisp. > > As I mentioned before, another big > problem is that lisp doesn't manipulate native Python ob

[sage-devel] Re: Proposal for inclusion of GINAC/pynac-0.1 in Sage.

2008-08-25 Thread Ondrej Certik
On Tue, Aug 26, 2008 at 8:43 AM, William Stein <[EMAIL PROTECTED]> wrote: > > On Mon, Aug 25, 2008 at 11:29 PM, Ondrej Certik <[EMAIL PROTECTED]> wrote: >> >> On Tue, Aug 26, 2008 at 12:49 AM, William Stein <[EMAIL PROTECTED]> wrote: >>> BTW, one important warning: ginac and sympycore are mis

[sage-devel] Re: Manipulating diff. eqs. in Mathematica using pattern matching

2008-08-25 Thread mabshoff
On Aug 25, 11:50 pm, "Ondrej Certik" <[EMAIL PROTECTED]> wrote: Hi, > >>> I think it's just about getting people to fix it. There are many > >>> people around who can fix Python/Cython and a little less (I guess) > >>> who can fix C++ and C. But a lot less who can fix lisp. > > > As I mentioned

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