The settings tab provides advanced controls for the simulation

Linear Solver buttons control the linear solver used to compute the simulation results.

• [DSS] The direct sparse solver is very fast but because it can consume large amounts of memory it is best used on simulations at resolutions less than 100000.
• [ISS]The iterative sparse solver is moderately fast and is fairly memory-frugal.
• [SnS]The Scan&Solve solver is the default iterative solver that allows visual feedback of the solution progress.

The Precision arrows control the relative error tolerance at which the SnS solver considers a simulation completed. Smaller values increase solution accuracy at the expense of solving time.

Show Grid checkbox enables/disables display of the solution grid during simulation setup and visualization.

[Grid Color] button selects the color used for displaying the solution grid.