Hello.
I installed SAGE and I was very happy with the results it gave in the very beginning.
However, the reason I installed it was because I need an open-source alternative for solving Linear matrix inequalities (LMIs). I did not find an LMI solver in SAGE, though.
I will be very delighted if you help me with this issue.
Please let me know if you want more information on the problems I want to solve.
Yours faithfully,
Slavi Slavchev, PA (Professor Assistant) Sofia University 'St Kliment Ohridski', Bulgaria