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Understanding the Display and Keyboard
The Cursor
The cursor (_) is visible during digit entry—that is, when you are in
the process of keying in a number. The cursor is also visible when
you are keying in an equation. (Entering equations is introduced later
in this chapter.)
Correcting and Clearing the Display ((¢] and [C])
When the cursor is on, or when you've just keyed in an operator, (¢]
deletes the last character you keyed in. Otherwise, (4] clears the entire
number.
During digit entry,
clears the number you are keying in. Other-
wise,
clears the display of its current contents and cancels the
current calculation.
Clearing Messages and Menus. [¢] and
also clear messages and
menus:
® When the HP-22S is displaying a message, (4] or
clears the mes-
sage and restores the original contents of the display.
B When the HP-22S is displaying a menu, (4] or
cancels the
menu. In multilevel menus, [¢] backs out one level at a time, while
cancels all menus and restores the original display. (See "Menus
and Pointers" on page 16.)
1: Getting Started
15
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