Re: Vectorizing a summation

[rdelgado]

Hi again,

I was mistaken again. Sorry,

Actual thing is that X, Y are vectors going i,j=1...MxN and P is a MxN x MxN
matrix.
The calculation is:

result = SUM(from i=1...MxN) SUM (from j=1...MxN) (Pi-Pj) * (Xi - Yi) * (Xj
- Yj) 

As I posted before.

Sorry, I was misunderstanding the operation.

If you can check it I'll be glad.

Thanks.



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