1 | initial version |
Alejandro Serrano wrote a qt interface a couple of years ago. You could start from there:
https://groups.google.com/group/sage-devel/browse_thread/thread/53b3d6c93c950561/f122c92eef98bed0
I tried it, and it worked. It had some nice features, but it didn't have an equation editor like lyx or texmacs.