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Additional Operating Features; Continuous Memory; The Display; Status Indicators - HP 12C Platinum User Manual

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Additional Operating Features

Continuous Memory

The calculator's Continuous Memory contains the data storage registers, the
financial registers, the stack and LAST X registers, program memory, and status
information such as display format, date format, and payment mode. All
information in Continuous Memory is preserved even while the calculator is turned
off. Furthermore, information in Continuous Memory is preserved for a short time
when the batteries are removed, so that you can change the batteries without
losing your data and programs.
Continuous Memory may be reset if the calculator is dropped or otherwise
traumatized, or if power is interrupted. You can also manually reset Continuous
Memory as follows:
1. Turn the calculator off.
2. Hold down the - key, and press ;.
When Continuous Memory is reset:
All registers are cleared.
Program memory consists of eight program lines, each containing the
instruction g(000.
Display format is set to the standard format with two decimal places.
Date format is set to month-day-year.
Payment mode is set to End.
Arithmetic operation is set to RPN mode.
Whenever Continuous Memory has been reset, the display will show Pr Error.
Pressing any key will clear this message from the display.

The Display

Status Indicators

Nine indicators that appear along the bottom of the display signify the status of the
calculator for certain operations. These status indicators are described elsewhere
in this handbook where the relevant operation is discussed.
Section 5
86

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