Cantor is a front-end to powerful mathematics and statistics packages. Cantor integrates them into the KDE Platform and provides a nice, worksheet-based, graphical user interface. It supports environments for KAlgebra, Lua, Maxima, R, Sage, Octave, Python, Scilab, and Qalculate!
License
Cantor is distributed under the terms of the GNU General Public License (GPL), Version 2.