http://www.mathhelpforum.com/math-he...1&d=1257676548
Last edited by pengchao1024; Nov 8th 2009 at 02:59 AM.
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Originally Posted by pengchao1024 I don't know if it is positive, but for sure it is not defined! Or it is the empty 0x0 matrix, which is indeed positive-definite (even though this statement is empty). ;-)
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