HP 50g HP 50g_user's manual_English_HDPSG49AEM8.pdf - Page 47

UNDO and CMD functions, CHOOSE boxes vs. Soft MENU

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UNDO and CMD functions Functions UNDO and CMD are useful for recovering recent commands, or to revert an operation if a mistake was made. These functions are 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. „°˜ Show PROG menu list and select MEMORY @@OK@@ ˜˜˜˜ Show the MEMORY menu list and select DIRECTORY @@OK@@ -- Show the DIRECTORY menu list and select ORDER Page 2-16

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Page 2-16
UNDO and CMD functions
Functions UNDO and CMD are useful for recovering recent commands, or
to revert an operation if a mistake was made.
These functions are
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.
„°˜
Show PROG menu list and select MEMORY
@@OK@@
˜˜˜˜
Show the MEMORY menu list and select
DIRECTORY
@@OK@@
——
Show the DIRECTORY menu list and select ORDER