User Manual

4 BA II PLUS™ Calculator
Keys and 2nd Functions
The primary function of each key is printed on the key. For
example, press
$
to turn the calculator on or off.
Some keys provide a secondary function. which is printed in
yellow above the key. When you press
&
, the character,
abbreviation, or word printed above a key becomes active for
the next keystroke. For example, press
& U
to leave a
worksheet and return to standard-calculator mode.
The Display
The display shows entries and results with up to 10 digits. The
indicators along the top of the display provide information
about the status of the calculator and tell you what keys are
available at different times.
ABC
represents the spaces where the three-letter abbreviations
for the variable labels are displayed.