Open phfranz opened 6 months ago
I guess we want to allow for the inhomogeneous case as well, which is then usually called Poisson equation.
For the reference solution, you can check the literature or experiment with pdesol
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Droping the term with the time derivative from the heat equation, you obtain Poisson.
https://github.com/imcs-compsim/pdesol/blob/main/heatEquationAndAD/3d/sin3d.py
Thank you very much for your comments and hints, Max. I will do that!