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On Fri, 9 Feb 2001, Leigh Palmer wrote:
At 6:02 AM -0800 2/9/01, John Mallinckrodt wrote:
>Once the calculation is finished, finding the Laplacian for those
>cells whose value was specified as a part of the boundary
>condition gives the charge density (times some appropriate
>constant) in those cells.
Do you mean the Laplacian or the gradient? It is the potential
gradient that is proportional to the charge density.
Oh, Leigh! You know better than that. The gradient of the
potential is a vector. It's called ... um ... er... Dang. Well,
I know that it *does* have a name!
Perhaps I should have called it the Poissonian?