Nokia 8390 - Manual (Page 135)

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2 Enter the first number in the calculation.
• Press to enter a decimal point and press Clear to erase any
mistakes.
• To add, press (
+
appears)
• To subtract, press 2 times (- appears)
• To multiply, press 3 times (
∗
appears)
• To divide, press 4 times (/ appears)
3 Enter the second number, repeating steps as needed.
4 Press Options. Equals is selected.
5 Press Select.
Use the square and square root functions
You can use the calculator for finding the square of a number or the
square root of a number.
1 Press Menu 6 (Calculator).
2 Enter the number.
3 Press Options, scroll to Square or Square root, then press Select.
Convert currency
SET THE EXCHANGE RATE
1 Press Menu 6 (Calculator), then press Options.
2 Scroll to Exchange rate, then press Select.
3 Scroll to Home units converted to foreign units or Foreign units
converted to home units, then press Select.
4 Press Clear to remove any numbers from the Exchange rate box.
5 Enter the exchange rate (press to enter a decimal point).
6 Press OK.
Note: The exchange rate remains in the phone’s memory until you
replace it.