Gemse - General Math Structure Editor
Gemse is an editor for formulas written in MathML or OpenMath. It is
controlled by keybord similar to the text editor vim.
For more information see
http://www.andonyar.com/rec/2008-12/gemse/
License:
Gemse 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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.