Re: Is the 2D PDE's numerical solution vectors?

"phd9992000 " <phd9992000@xxxxxxxxxxxx> wrote in message
<fip2mo$jcn$1@xxxxxxxxxxxxxxxxxx>...
AS the title prompted.IF true,what's the direction?if
not,ps.give some interpretation

Could you specify, i.e., give the name of the field?
Electric field (like in Maxwells wave-equations)? Then its a
vector. Scalar electric potential, then its not a vector.
But maby you mean a vector which is derived from the
potential? like E=-grad(U(r)). Direction is defined as the
normalized vectorcomponent of a vector! direction of
r=(x,y,z) is equal to (x,y,z)/sqrt(3), thus direction of
(Ex,Ey,Ez) is (Ex,Ey,Ez)/norm(E) but maby you what to
present it by some angle? In PDE programs like comsol/femlab
you have an option to plot arrows for vectors.

Per

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