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1. Select Menu→Applications→Extras→Calculator.
2. When "0" is displayed, enter the first number in the calculation. Press
for a decimal point. To change the sign, select Options→Change sign.
3. Select Options→Add, Subtract, Multiply, Divide, Square, or Square root.
Or, press once to add, twice to subtract, three times to multiply, and four
times to divide.
4. Enter the second number, if needed for the calculation.
5. For a total, press Equals. Repeat steps 3 to 5 as many times as is necessary.
6. To start a new calculation, first press and hold Clear.
To make a currency conversion, you must first set the exchange rate. Select
Menu→Applications→Extras→Calculator, and select Options→Exchange rate.
Select either of the options, enter the exchange rate (press for the decimal
point), and press OK.
To make the conversion, enter the amount you want to convert, and select
Options→In domestic or In foreign.
Countdown timer
Note: Some timers may be reset during service or software upgrades.
Select Menu→Applications→Extras→Countdown timer. Enter the countdown
time, and press OK. If you want, write your own text note that is displayed when
the time expires. To start the countdown timer, press Start.