3.1.2 The Benefits of Introducing Assignment. As we shall see, introducing assignment into our programming language leads us into a thicket of difficult conceptual issues. Nevertheless, viewing systems as collections of objects with local state is a powerful technique for maintaining a modular design.
Set Defined Commands to 1. Mark the first command lines as active, change to Every 10 iteration, and type disp set-window 2 cont mach-number 2 3 in the command box. Click OK. The command will make sure that window 2 is used to plot Mach numbers, in the range from 2 to 3 during the iteration process. Save the case: Use File -> Write -> Case & Data.