4. Restart and Reset

SRestart

Should the calculator start to act abnormally, you can restart it by pressing the RESTART button. Note, however, that you should only use the RESTART button only as a last resort. Normally, pressing the RESTART button reboots the calculator’s operating system, so programs, graph functions and other data in calculator memory is retained.

RESTART button

fx-9860GIISD

fx-9750GII

fx-9860GII

fx-7400GII

fx-9860G AU PLUS

 

Important!

The calculator backs up user data (main memory) when you turn power off and loads the backed up data when you turn power back on.

When you press the RESTART button, the calculator restarts and loads backed up data. This means that if you press the RESTART button after you edit a program, graph function, or other data, any data that has not been backed up will be lost.

SReset

Use reset when you want to delete all data currently in calculator memory and return all mode settings to their initial defaults.

Before performing the reset operation, first make a written copy of all important data. For details, see “Reset” (page 12-3) in the separate Software Version 2.00 User’s Guide.

5. Power Supply

This calculator is powered by four AAA-size (LR03 (AM4)) batteries.

If the following message appears on the display, immediately turn off the calculator and replace the batteries as instructed.

E-9