HP 20b HP 20b Calculator Quick Start Guide - Page 13

Annunciators - price

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Basic Features When : is active, the down arrow annunciator appears on screen, indicating that the next key pressed will execute the secondary function of the key. To cancel an accidental press of :, simply press : a second time. Key commands for example problems are provided throughout the text and in tables. Key symbols are placed in the order they are to be pressed, from left to right. Annunciators Annunciators are symbols that appear in the display as messages, or after certain keys or key combinations have been pressed. Annunciators are special symbols indicating a specific status in the calculator. Table 1-3 lists the annunciators. Table 1-3 Annunciator Symbols Annunciator Symbol Status (•) The shift key has been pressed. When another key is pressed with this symbol displayed, the secondary function printed on the bevel of the key is activated. Big (=) symbol When displayed with an item, for example, Price =, it indicates the value assigned to that variable. 13

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Basic Features
13
When
:
is active, the down arrow annunciator appears on screen, indicating
that the next key pressed will execute the secondary function of the key. To
cancel an accidental press of
:
, simply press
:
a second time.
Key commands for example problems are provided throughout the text and in
tables. Key symbols are placed in the order they are to be pressed, from left to
right.
Annunciators
Annunciators are symbols that appear in the display as messages, or after certain
keys or key combinations have been pressed. Annunciators are special symbols
indicating a specific status in the calculator. Table 1-3 lists the annunciators.
Table 1-3
Annunciator Symbols
Annunciator Symbol
Status
(
°
)
The shift key has been pressed. When
another key is pressed with this symbol
displayed, the secondary function printed on
the bevel of the key is activated.
Big
(
=
)
symbol
When displayed with an item, for example,
Price =
, it indicates the value assigned to that
variable.