The collection of driver programs mentioned above have been constructed to illustrate how to use ARPACK in a straightforward way to solve some of the most frequently occurring eigenvalue problems. The purpose of this section and the corresponding simple codes is to provide a means to get started with ARPACK as quickly as possible. These codes may be used as templates that are easily altered to solve new problems after a few straightforward changes. The available simple drivers are listed in Table 2.1. These codes may be found in the EXAMPLES/SIMPLE directory.