GWF calculations ---------------- Here, we show the examples of GWF calculations for both clusters and materials (periodic boundary condition). GWF for cluster: ^^^^^^^^^^^^^^^^ 1. 1D model with local correlations 2. 2D Hubbard-U model with nonlocal correlations 3. First-principles calculations 4. Electron-boson couplings TBA. GWF for materials ^^^^^^^^^^^^^^^^^ TBA.