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when toggle format what by license comment
May 5, 2017 at 12:42 history edited Davide Giraudo CC BY-SA 3.0
added 49 characters in body
May 2, 2017 at 20:42 comment added Xiaosheng Mu I mean $\Sigma$ decreases by a positive semi-definite matrix
May 2, 2017 at 18:17 comment added Henry.L Hi, Xiaosheng. What do you mean by "in matrix order"?
May 1, 2017 at 4:06 history asked Xiaosheng Mu CC BY-SA 3.0