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The Laplacian of a scalar function
is
and so is a natural generalisation of
for the one
dimensional function
to the thre dimensional function
. Formulae involving combinations of functions or vector
products can be worked out by remembering that
is both an
operator and a vector. Thus,
and so
 |
(1.24) |
and
 |
(1.25) |
Prof. Alan Hood
2000-11-06