The status frame displays the progress of the calculation. Generating the Hamiltonian is generally the fastest. Due to the use of delta functions as a basis set, there are only sums, no integrals to be evaluated. Once the hamiltonian is generated and the matrix set up, the matrix is diagonalized in two steps - first tridiagonalized, and then the program solves for the eigenvalues and eigenvectors using the tridiagonal matrix. This last step is the most time consuming.