The command MENU can create a custom menu from a list of names
and commands. The custom menu can be similar to the Solver menu
or the USER menu .
the first element in the list is the command STO, followed by a
sequence of names, MENU creates a Custom Input menu. This
menu looks and acts like the Solver menu: pressing a menu key
take a value from the stack and stores it in the corresponding vari-
able. For an example, see chapter 27, "Interactive Programs."
the list contains a sequence of names and commands (the first
element being different from STO), MENU creates a Custom User
menu. This menu acts like a hybrid of the USER menu and a com-
mand menu. For an example, see "Changing Directories" on page