E-5
Precautions when Using this
Calculator
A progress bar and/or a busy indicator appear on the display whenever the calculator is performing
a calculation, writing to memory, or reading from memory.
Busy indicator
Progress bar
Never press the RESTART button or remove the batteries from the calculator when the progress
bar or busy indicator is on the display. Doing so can cause memory contents to be lost and can
cause malfunction of the calculator.
The calculator is equipped with flash memory for data storage. It is recommended that you always
backup your data to flash memory. For details about the backup procedure, see “Using the Memory
Manager” (page 11-1) in the separate Software User’s Guide.
You can also transfer backup files (page 11-11) to a computer by establishing a USB connection
between the calculator and a computer. For information about transferring files from a computer to
the calculator, see “Chapter 13 Data Communication” in the separate Software User’s Guide.
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