* Silicon in the diamond structure [#eb0372c8] In this tutorial, the convergence of the total energy and lattice parameter with respect to the computational parameters, such as kinetic energy cutoff and k-point mesh is described. ** Convergence study (1) [#ie36b128] ** Convergence study (2) [#le8e4f24] *** Optimization of cell parameters (1) [#cec999a2] *** Optimization of cell parameters (2) [#o2598758]