UNDO and CMD functions
Functions UNDO and CMD are useful for recovering recent commands, or
to revert an operation if a mistake was made.
associated with the HIST key: UNDO results from the keystroke sequence
‚¯, while CMD results from the keystroke sequence „®.
CHOOSE boxes vs. Soft MENU
In some of the exercises presented in this chapter we have seen menu lists
of commands displayed in the screen. These menu lists are referred to as
CHOOSE boxes. Herein we indicate the way to change from CHOOSE
boxes to Soft MENUs, and vice versa, through an exercise.
Although not applied to a specific example, the present exercise shows the
two options for menus in the calculator (CHOOSE boxes and soft MENUs).
In this exercise, we use the ORDER command to reorder variables in a
directory. The steps are shown for Algebraic mode.
@@OK@@ ˜˜˜˜ Show the MEMORY menu list and select
Show PROG menu list and select MEMORY
Show the DIRECTORY menu list and select ORDER
These functions are