Calculator; Countdown Timer; Stopwatch - Nokia 6555 User Manual

O r g a n i s e r
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Calculator

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 > Organiser > 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 > Organiser > 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.
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Countdown timer

To start the countdown timer, select Menu > Organiser > Countd. 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.
To have an interval timer with up to 10 intervals started, first enter the intervals.
Select Menu > Organiser > Countd. timer > Interval timer. To start the timer,
select Start timer > Start.
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Stopwatch

You can measure time, take intermediate times, or take lap times using the
stopwatch. During timing, the other functions of the phone can be used. To set
the stopwatch timing in the background, press the end key.
Using the stopwatch or allowing it to run in the background when using other
features increases the demand on battery power and reduces the battery life.
Select Menu > Organiser > Stopwatch and from the following options:
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