On Mon, 30 Oct 2006 03:26:06 -0800, David Joyner <[EMAIL PROTECTED]> wrote:
> > I assume you want to do 2 things: > 1. translate their PDE solver (numerical or symbolic?), > 2. translate the DG computation package. > For 2, I'd contact the guy who presented the work at the conference and > tell him what you'd like to do. Better yet, you could ask him for help. Josh told me that guy had to sign an NDA, so he can't be of any help, for fear of being sued by Maplesoft. > For 1, I imagine this would be quite difficult and don't see that > "copying" would be an issue. My understanding of copyright is that it would be a huge issues. It could cause massive problems for SAGE. My understanding is that if one reads the source code of a program then types something in another language, that new version is a derived work. To do this with maple code may be a blatant violation of their copyright, which would be a huge pain. Likewise, if Maple (or MAGMA) employees were to read source code of SAGE and type in a program based on what they read, then copyright it as their own with releasing it under hte GPL, they would definitely be breaking the law. That's my understanding at least, and I've been told this many times... > Maple is Pascal-like, as is GAP, and > is much different than Python. You'd probably end up rewriting an > enormous amount of code, finding your own improvements along the way. True. But if he bases the code on maple's and maple's copyright doesn't allow that, then he would be violating their copyright. > In any case, I imagine the PDE solver came from someone's > work and it would be nice if you could track him/her down and > tell him/her your plans as with the DG package. You could post to > sci.math.symbolic or maybe email some Maple users group. > > BTW, a differential forms package has just been (or is being, as we > speak) > added to the "bleeding edge" version of Maxima. I get the impression that > the code is written by a Japanese grad student with not great English > language skills, so expect very little English documentation. However, > some > other people on the maxima users list are saying very nice things about > it. > This may or may not help with your other project, but just thought I'd > mention it. Cool.... --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
