OK, Brian, you beat me to it, I was going to post this link again in an effort to prolong this thread. ;-)
This link points to a tutorial about how to use Sage to do group theory. PDF and *.sws formats. Lots of text, but significant sections of Sage code, including an @interact. Is this a "text" or a "program"? Book or code? No import statement anywhere - i'm not linking to anything. A reader/user can do what they want with it - read it or manipulate it digitally (ie upload it into Sage). Is this like a book or instruction manual and I can license it as GFDL or CC, as I choose? Or is this a program and the FSF FAQ takes precedence and I *must* yield to their overarching interpretation of their license? I claim, like Ondrej's hypothetical CD, that this is my creative work, independent of Sage, and I can do what I want with it, beginning with a strict copyright. I have not used Sage to create it, William Stein (as titular copyright holder of Sage) has no sway, and neither does FSF. I have entered into no contract with Sage, Stein or the FSF in the course of its creation, I haven't copied their "materials" or used them in any fashion to create my tutorial. I'm totally independent. Words on a page - my own thoughts and expressions - my creative output. Maybe I'll revoke the CC license on my next revision and users can pay me a royalty for every web-view. I think the notion that I am beholden to apply the GPL to a work created with a text editor (Kate), a Python Script (written personally) and translation tool with a Latex Public License (Tex4ht) is absurd. Just where does Sage's GPL license apply to this? > http://abstract.ups.edu/sage-aata.html > That is 1) being publicly distributed and 2) is not being released > under the GPL. I plan to keep it that way. Rob On May 5, 11:30 pm, Brian Granger <ellisonbg....@gmail.com> wrote: > At the beginning of this thread, someone posted a link to the Sage worksheet: > > http://abstract.ups.edu/sage-aata.html > > That is 1) being publicly distributed and 2) is not being released > under the GPL. > > Plus, anyone can create an account on the public Sage notebook > servers, so basically any worksheet that is Shared there falls under > this category. > > Finally a quick Google for "Sage Worksheet" or ".sws" reveals *many* > public Sage worksheets, and at a glance, none of them have any > licensing information. > > Now that I think about it, how would I release a worksheet under the > GPL. The usual way is to add: > > This program is free software: you can redistribute it and/or modify > it under the terms of the GNU General Public License as published by > the Free Software Foundation, either version 3 of the License, or > (at your option) any later version....etc. > > to the source. Is there a simple way of doing that? Would it make > sense to enable notebook users to add this to their Worksheet by > simply clicking a box "Make this GPL." Then, when a Worksheet is > loaded, if it has the GPL text, the notebook could display it or > notify the user "This Worksheet is GPLd." > > Cheers, > > Brian --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
