Dear getfem users,
I have a very beginner's question.
I am trying to solve a system of 2 PDE (variables u and p) that are
coupled through linear terms. As a crude example, Eq(1): Laplacian(u)=p,
Eq (2): Laplacian(p)=x, and boundary conditions.
I figured out that I need to add an explicit term to the tangent system
in order to account for the linear term -p in Eq (1). Is it the correct
way of tackling this problem? Would someone have some example of
programming such coupling of PDE (or of the declaration of the matrix
and the use of the add_explicit_matrix brick in case I am correct)?
Thank you very much for your invaluable help!!
Best regards,
Alice Nicolas
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