Re: [sage-devel] Re: sage-5.0 serious bug: segfaults in basic linear algebra?

2012-06-08 Thread Jan Pöschko
On Friday, June 8, 2012 11:54:58 AM UTC+2, Volker Braun wrote: > > For the record, I didn't get any segfaults when running > > for i in `seq 0 1000` ; do sage -c 'print > ModularSymbols(389,sign=0).cuspidal_submodule().decomposition()[0]' ; done > > on sage-5.1.beta2 and Fedora 17. > > I just ran

[sage-devel] Re: FreeModule basis coercion

2012-06-05 Thread Jan Pöschko
5 June 2012 10:01:08 UTC+2, Jan Pöschko wrote: >> >> Hi everyone, >> >> I am working on the Summer of Code Lattices >> project<http://gsoc-sage-lattices.blogspot.com>and ran into a problem when >> trying to subclass >> Lattice from FreeModule_submodu

Re: [sage-devel] FreeModule basis coercion

2012-06-05 Thread Jan Pöschko
UTC+2, John Cremona wrote: > > I don't see what is wrong in your example. If you want vectors in > RR^2, replace ZZ^2 with RR^2 in the input line. > > John > > On 5 June 2012 09:01, Jan Pöschko wrote: > > Hi everyone, > > > > I am working

[sage-devel] FreeModule basis coercion

2012-06-05 Thread Jan Pöschko
Hi everyone, I am working on the Summer of Code Lattices projectand ran into a problem when trying to subclass Lattice from FreeModule_submodule_with_basis_pid. If I'm getting it right, the coefficient ring *R* is to be specified as parameter ambient (in

Re: [sage-devel] Re: MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
On Monday, April 2, 2012 8:30:53 PM UTC+2, Dr. David Kirkby wrote: > > It's your project, but if it was me, I'd certainly go for the Engine->Sage > approach, which as you say it more Mathematica-like. > Thanks for your input. > I've not looked at your program, but how did you write the parser?

Re: [sage-devel] Re: MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
I am quite aware of the potential risk of being sued, but still I don't know what to do about it. Isn't this a general problem when creating (free) software? The patent you mentioned could easily be applied to Sage as well – so how do you deal with that there? Should I contact Wolfram and expli

[sage-devel] Re: MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
On Saturday, March 31, 2012 7:08:16 PM UTC+2, Maarten Derickx wrote: > > I at least know that the creator of that project has a sage trac account. That's true, I used it to file http://trac.sagemath.org/sage_trac/ticket/10914 once. I hope to use it much more extensively in the near future... J

[sage-devel] Re: MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
On Monday, April 2, 2012 4:01:58 PM UTC+2, rjf wrote: > > > > On Mar 31, 1:13 pm, Volker Braun wrote: > > On Saturday, March 31, 2012 7:11:23 PM UTC+1, kcrisman wrote: > > > > > therefore lack the “structural beauty” of the Mathematica® language. > > > > Well-placed irony quotation marks! >

Re: [sage-devel] Re: MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
On Monday, April 2, 2012 12:15:28 AM UTC+2, Dr. David Kirkby wrote: > > On 03/31/12 10:01 PM, William Stein wrote: > > > That > > seems surprisingly slow, given: > > > Perhaps the server was under a lot of load at the time. I just tried the > same > and got an almost instant answer. > You're righ

Re: [sage-devel] Re: MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
On Saturday, March 31, 2012 11:01:57 PM UTC+2, William wrote: > > This is pretty nice. > I'm really glad you like it. > I used it for some basic mathematica-like stuff, and it seemed to work > fine. I did try an integral though: > > Integrate[Sin[x]*Cos[x+1],x] > > and I seem to be able to c

[sage-devel] Re: MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
On Saturday, March 31, 2012 10:35:32 PM UTC+2, leif wrote: > > > "The core of Mathics is and shall remain independent of Sage, as it > adds a huge footprint to the installation and Mathics should remain > rather lightweight. In addition, it should be easier to install > Mathics on Windows and mo

[sage-devel] Re: MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
On Saturday, March 31, 2012 8:11:23 PM UTC+2, kcrisman wrote: > > Granted that it seems to use a lot of Sympy and has a much more Mma- > like syntax, I can see a definite niche for this. The server > currently works fine. Great! :) > Why it isn't called something that makes its > connectio

[sage-devel] Re: MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
On Saturday, March 31, 2012 7:17:09 PM UTC+2, leif wrote: > > > FWIW, since he's cc'ed to this thread: > > The installation instructions [1] for the optional Sage support won't > work with Sage 5.x: > > sage -sh > sage -python setup.py install > python install_sage_scripts.py > rm $SAGE_ROOT/

[sage-devel] Re: MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
On Saturday, March 31, 2012 6:44:30 PM UTC+2, leif wrote: > > > "Please support Mathics by giving something via Flattr! > > WANTED: Developers! Please contact me at mail(at)mathics.org or via > Twitter if you want to be part of this awesome project!" > > :-) Well, at least it made you laugh.

Re: [sage-devel] MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
On Saturday, March 31, 2012 6:18:49 PM UTC+2, Daniel Krenn wrote: > > Maybe he can tell us something about > his plans for Mathics... > I have a lot of ideas for future features of Mathics. One (rather ambitious one) would be to (automatically) translate all of its Python code base to JavaScript

Re: [sage-devel] MathICS: A free, light-weight (online) alternative to Mathematica with support for Sage

2012-04-02 Thread Jan Pöschko
Hi everybody, I'm the creator and only maintainer of Mathics. It's great to see some discussion of Mathics here, and I'll happily join it... On Saturday, March 31, 2012 5:41:45 PM UTC+2, John Cremona wrote: > > > Perhaps someone should email him and ask why he doesn't just join Sage ? > What do