Re: Inverse of a non-square matrix

To my knowledge, non-square matrices can not have an inverse.
By definition, if Y is the inverse of X

      X*Y = Y*X

However, if X is non-square the dimension sizes will not work.

===
I think that a "pseudo inverse" can be calculated.
However, NCL does not have have a specialized function
to calculate this.

Sorry!
D

On 4/28/10 1:09 PM, Ekin Akoglu wrote:
> Dear all,
>
> Is there a function in NCL to calculate an inverse of a non-square
> matrix? Or "inverse_matrix" function is capable of it?
>
> If it is capable of calculating the inverse of a non-square matrix, it
> does not work for me since I get the error:
>
> On entry to DGETRI parameter number 3 had an illegal value
>
> I would be glad for your suggestions.
>
> Regards,
>
> Ekin
> _______________________________________________
> ncl-talk mailing list
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
_______________________________________________
ncl-talk mailing list
List instructions, subscriber options, unsubscribe:
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
Received on Wed Apr 28 13:52:44 2010