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2 Overview of Calculator Operations
Automatic Power Down (APD) Feature
To prolong battery life, the Automatic Power Down (APD) feature turns off the
calculator automatically after about five minutes of inactivity.
The next time you press $, the calculator turns on exactly as you left it,
saving display settings and stored memory and any pending operations or
error conditions.
Selecting 2nd Functions
The primary function of a key is printed on the key itself. For
example, the primary function of the $ key is to turn on
or turn off the calculator.
Most keys include a second function printed above the key.
To select a second function, press & and the
corresponding key. (When you press &, the 2nd indicator
appears in the upper left corner of the display.)
For example, pressing & U exits the selected worksheet
and returns the calculator to the standard-calculator mode.
Note: To cancel after pressing &, press & again.
Reading the Display
The display shows the selected variable labels with values up to 10 digits. (The
calculator displays values exceeding 10 digits in scientific notation.)
The indicators along the top of the display tell you which keys are active and
offer information about the status of the calculator.
Indicator Meaning
2nd
Press a key to select its second function. (&
To cancel, press & again.
8


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