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Sep 29, 2015 at 19:18 review Late answers
Oct 1, 2015 at 0:12
Aug 29, 2010 at 19:28 history edited Jiri Lebl CC BY-SA 2.5
<= 1 of course :)
Aug 29, 2010 at 19:09 history edited Jiri Lebl CC BY-SA 2.5
I meant of course that rank <= 1, or that the 3 2x2 subdeterminants are zero
Aug 29, 2010 at 19:07 comment added Jiri Lebl yes, duh .... I mixed up in my head the 3 equations (the three 2x2 determinants) and the condition ... sorry about that
Aug 20, 2010 at 10:54 comment added Thierry Zell Det? Don't you mean rank <= 1?
Jul 8, 2010 at 21:35 history edited Jiri Lebl CC BY-SA 2.5
fix the matrix
Jul 8, 2010 at 20:04 history answered Jiri Lebl CC BY-SA 2.5