Hp 33s User Manual Page 21

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Getting Started 1–5
Keys for Clearing
Key Description
b
Backspace.

Keyboard–entry mode:
Erases the character immediately to the left of "_" (the
digit–entry cursor) or backs out of the current menu. (Menus
are described in "Using Menus" on page 1–7.) If the
number is completed (no cursor),
b
clears the entire
number.

Equation–entry mode:
Erases the character immediately to the left of "
¾
" (the
equation–entry cursor). If a number entry in your equation
is complete,
b
erases the entire number. If the number is
not complete,
b
erases the character immediately to the
left of "_" (the number–entry cursor). "_" changes back to
"
¾
" when number entry is complete.
b
also clears error messages, and deletes the current
program line during program entry.
Clear or Cancel.
Clears the displayed number to zero or cancels the current
situation (such as a menu, a message, a prompt, a catalog, or
Equation–entry or Program–entry mode).
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