The next node in the project tree can be double-clicked to bring up the Solver panel, shown in Figure 2.13: psr__gas.ckprj—Solver Parameters. Solver parameters are generally optional user input, since defaults are provided for all values. In some cases, users may need to override the default tolerances for the solution, depending on the characteristics of their chemistry set. The Solver panel contains both Basic and Advanced tabs. In general, the Advanced tab is only used in cases when convergence difficulty is encountered.
