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?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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

**Physics Forums | Science Articles, Homework Help, Discussion**