The Controls menu presents several optional functions for processing descriptors.
FlexPDE has two different operating modes, Edit and Plot. When in edit mode, the text of the current discriptor is displayed for editing. When in Plot mode, graphics are displayed, either the monitors and plots being constructed as a problem runs, or the final state of plots when a run is completed.
Domain Review
When FlexPDE is in Edit mode, the Domain menu item will begin processing the displayed problem descriptor, halting at various stages of the mesh generation to display the current state of the mesh construction. This is an aid to constructing problem domains. (See "Domain Review")
Run
When FlexPDE is in Edit mode, the Run menu item will begin processing of the displayed problem descriptor. Execution will proceed without interruption through the mesh generation, execution and graphic display phases. (See "While the Problem Runs")
Show Editor
When a problem is stopped in Plot with graphics being displayed, the Show Editor menu item will enter Edit mode and invoke the editor to display the current problem text. (See "Editing Scripts")
Show Plots
When a problem is in the Edit mode, the Show Plots menu item will switch to Plot mode and display the current state of the problem graphics.