I once used this averaging algorithm to solve a boundary value Laplace
problem with MATHCAD. It is tedious to set up (stick to a simple geometry)
and very tedious in lengthy computing time. But the advantage is that
MathCad immediately gives you very enlightening graphs of the results: x vs
y plots, contour maps, little E field arrows or even perspective drawings of
the potential.
Anyone interested (it needs MathCad 6 Plus or better) can get my code by
asking. It takes some slight "trickery" to get MathCad to iterate.
Bob
Bob Sciamanda (W3NLV)
Physics, Edinboro Univ of PA (em)
trebor@velocity.net
www.velocity.net/~trebor