Calculator; Countdown Timer - Nokia 3555 User Manual

To make a note if no note is added, select Add note. Write the note,
and select Save.

Calculator

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The calculator in your phone provides basic arithmetic and trigonometric
functions, calculates the square and the square root, the inverse of a number,
and converts currency values.
Note: This calculator has limited accuracy and is designed for simple calculations.
Select Menu > Organizer > Calculator. When 0 is displayed on the screen,
enter the first number in the calculation. Press # for a decimal point. Scroll
to the desired operation or function or select it from the Options. Enter the
second number. Repeat this sequence as many times as it is necessary. To start
a new calculation, first select and hold Clear.
To perform a currency conversion, select Menu > Organizer > Calculator. To
save the exchange rate, select Options > Exchange rate. Select either of the
displayed options. Enter the exchange rate, press # for a decimal point, and
select OK. The exchange rate remains in the memory until you replace it with
another one. To perform the currency conversion, enter the amount to be
converted, and select Options > To home or To foreign.
Note: When you change base currency, you must enter new exchange rates
because all previously set exchange rates are cleared.

Countdown timer

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To start the countdown timer, select Menu > Organizer > Timer > Normal
timer, enter the alarm time, and write a note text that is displayed when the
time expires. To start the countdown timer, select Start. To change the
countdown time, select Change time. To stop the timer, select Stop timer.
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