[ncl-talk] dot product question

[Dennis Shea]

  See attached

%> ncl tst_dim_dot_n.ncl

On Thu, Aug 13, 2020 at 9:24 PM M P via ncl-talk <ncl-talk at mailman.ucar.edu>
wrote:

> Hello,
> I have two arrays a(:,:,:), b(:,:,:), third dimension being vertical.  I
> want to obtain a dot product along  the third index i.e.
> c(i,j) = sum[a(i,j,k)*b(i,j,k)]_k=bottom,top.
> I tried dim_sum_n but probably incorrectly and it produces wrong results.
> Can you advise?
> Thanks,
> Mark
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