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help on a hard question:1d but two variables
Posted Mar 16, 2010, 5:37 a.m. EDT 2 Replies
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I am studying an electromagnetic model:
-d/dz(D(z)d/dz)C(z,q) + D(z)*q^2*C(z,q) =1
z is a space variable, and q is not a space variable(frequency value). So it is a 1D question in fact but there are two variables in the equation.
Is it possible to design two sub-domains, one for z and the other for q?
Thanks a lot!