Preserving formula semantics - what does that mean ? In short - you
can use entered formulas to make real calculations. But there's
more. :)
Current version: 0.0.6a (repository sources and showcase)
You now can see and try the showcase of the editor at:
http://formula-editor.appspot.com/
Implemented features:
* variables and numbers
* +, -, *, <, >, = operators and brackets
* fractions (brackets are respected when entering fractions)
* functions (insert via special buttons)
* raising to powers
* undo and redo actions
We want to implement code completion (at least for greek variables,
function and operator names). We are also going to make it adaptable
from GWT to other frameworks (Swing, SWT, etc.). For now it is a
matter of couple a minutes to start using it with Swing.