Suppose I have a matrix that looks like this(adsbygoogle = window.adsbygoogle || []).push({});

[,1] [,2]

[1,] 2.415212e-09 9.748863e-10

[2,] -2.415212e-09 5.029136e-10

How do I make it positive definite? I am not looking for specific numerical value answer, but a general approach to this problem.

I have heard singular value decomposition, or getting some eigenvalue? Is that correct?

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# How to make matrix positive definite (when it is not)?

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