HP 17BIIPLUS Owner's Manual page 20

Table 1-2. Keys for Clearing
Key
Backspace; erases the character before the cursor.
<
C
Clear; clears the calculator line. (When the calculator
is off, this key turns the calculator on, but without
clearing anything.)
This clears all information in the current work area
@c
(menu). For example, it will erase all the numbers in
a list if you are currently viewing a list (SUM or
CFLO). In other menus (like TVM),
all of the values that have been stored. In SOLVE, it
can delete all equations.
The cursor ( ! ) is visible while you are keying in a number or doing a
calculation. When the cursor is visible, pressing
character you keyed in. When the cursor is not visible, pressing
erases the last number.
Keys: Display:
12345 "
<<
.66 #$%&''!"
(&(#"
@t
(&(("
<
In addition, there are more drastic clearing operations that erase more
information at once. Refer to "Resetting the Calculator" on page 228 in
appendix A.
20 1: Getting Started
Description
@c
deletes the last
<
Description:
Backspacing removes
the 4 and 5.
Calculates 1/123.66.
Clears the calculator
line.
clears
<