DrGeo is a geometry package for education. http://www.drgeo.eu/ http://www.drgeo.eu/ MOOSE, which is some sort of code analysis tool: http://www.moosetechnol

DrGeo is a geometry package for education. http://www.drgeo.eu/ http://www.drgeo.eu/ MOOSE, which is some sort of code analysis tool: http://www.moosetechnology.org/ http://www.moosetechnology.org/ I've never been able to make heads or tails of it, but it's kind of an architect-level tool and I'm just a lowly engineer.