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## 4.5 Wannier functions

There are several Wannier-related utilities in `PostProc`:

1. The "Poor Man Wannier" code `pmw.x`, to be used in conjunction with DFT+U calculations (see Example 05)
2. The interface with Wannier90 code, `pw2wannier.x`: see the documentation in `W90/` (you have to install the Wannier90 plug-in)
3. The `wannier_ham.x` code generates a model Hamiltonian in Wannier functions basis: see `WannierHam_example/`.

Note that the `wfdd.x` code has been moved to `CP`.