Timeline for Open source mathematical software
Current License: CC BY-SA 2.5
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 16, 2014 at 11:07 | comment | added | Federico Poloni | @kundor Actually the Geogebra page on licensing now seems clearer than when I wrote my previous comment. The program itself is GPL, and the additional restrictions are on additional components such as the web plugin, the installer and the translations of the interface in other languages. I still disagree with the claim "GeoGebra is open source software", but at least everything is consistent. | |
| Nov 16, 2014 at 11:01 | comment | added | Federico Poloni | @kundor Sure, but you cannot forbid those who already have the software from redistributing it (even to commercial users), which usually makes selling it quite pointless. The commercial use clause falls under the "further restrictions" cause and is invalid in my view. And the contradiction (1)-(2) stands clear in the OSI definition, if one assumes that as the definition of open source. | |
| Nov 16, 2014 at 3:28 | comment | added | Nick Matteo | @FedericoPoloni: Not at all. The GPL certainly doesn't forbid charging for software. You just have to provide the source code to whoever you sell it to. In fact, a great deal of software which costs money is open source. | |
| Mar 29, 2014 at 18:56 | comment | added | Federico Poloni | @KjetilBHalvorsen I am not sure that Geogebra is open source. Its webpage geogebra.org/cms/en/license claims that: (1) Geogebra is open source (2) Geogebra is free of charge for non-commercial use only (3) the Geogebra source code is available under the GPL. As far as I know, (2) is in contradiction with both (1) (per the OSI open source definition) and (3) (per the GPL terms). Strange indeed. | |
| Jul 7, 2012 at 4:08 | comment | added | kjetil b halvorsen | "For kids to play with": geogebra is used a lot in schools. geogebra.org/cms | |
| Jan 12, 2012 at 4:02 | history | made wiki | Post Made Community Wiki by S. Carnahan♦ | ||
| Sep 13, 2010 at 23:29 | history | answered | user9149 | CC BY-SA 2.5 |