5. Setting up the variational formulation in Florence

A mandatory step in solving any problem with Florence is certainly setting up the variational formulation. Florence offers the following predefined variational formulations:

1. Laplacian
2. DisplacementFormulation
3. DisplacementPotentialFormulation
4. CoupleStressFormulation
5. FlexoelectricFormulation

To call any of these formulation we can do

formulation = Laplacian(mesh)
formulation = DisplacementFormulation(mesh)
...

All of these variational formulations take Florence.Mesh as a necessary positional argument.