Skip to main content
3 events
when toggle format what by license comment
Mar 15, 2016 at 15:25 comment added joro @Suvrit also permutation matrices. I am looking for something broader if doable.
Mar 15, 2016 at 14:17 comment added Suvrit Here's a tautological answer: the identity matrix :-) --- more interesting answers will include easy cases of GI, but you already know all that...
Mar 15, 2016 at 10:09 history asked joro CC BY-SA 3.0