[Insight-users] how to calculate the sqrt of a matrix

Luis Ibanez luis.ibanez at kitware.com
Thu Apr 12 11:31:40 EDT 2007


Hi Achille,

You should have mention from the beginning that your matrix
was diagonal.

In that case you simply need to compute the square root
of each one of the diagonal elements.

There is no need for you to use the Cholesky decomposition.


    Regards,


       Luis


----------------------
achille mangna wrote:
> Hi Luis!
> thanks very much .
> As my matrix is diagonal, the Cholesky decomponsition seems to be the 
> wright  way .
> thanks for your help.
>  
>  
>  
>  


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