Casio fc-83GT CW User Manual page 107

■ Why does the battery icon (
turned on?
→ The battery icon indicates that battery power is low. If you see this
icon, replace the battery as soon as possible. For details about battery
replacement, see
■ How can I return the calculator to its initial default settings?
→ Perform the procedure below to initialize calculator settings (except for
Contrast and Auto Power Off).
(1) Press , select a calculator app icon, and then press
(2) Press , and then select [Reset] > [Settings & Data] > [Yes].
) appear right after the calculator is
"Replacing the Battery" (page
106
98).
.