Nokia 6170

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Calculator
Press 
Menu
, and select 
Organiser
 and 
Calculator
.
When 0 is displayed, key in the first number in the calculation. Press 
 for a 
decimal point. Press 
Options
, and select 
Add
Subtract
Multiply
Divide
Square
Square root
, or 
Change sign
. Alternatively, press 
 repeatedly to add, subtract, 
multiply, or divide.  Enter the second number if needed, and for a total, press 
Equals
.
Note: This calculator has limited accuracy and is designed for simple calculations.
To start a new calculation, first press and hold 
Clear
.
Performing a currency conversion
Press 
Menu
, and select 
Organiser
 and 
Calculator
. To save the exchange rate, press 
Options
, and select 
Exchange rate
. Select either of the displayed options, key in 
the exchange rate, and press 
OK
. The exchange rate remains in the memory until 
you replace it with another one. Key in the amount to be converted, press 
Options
and select 
In domestic
 or 
In foreign
.
You can also perform the currency conversion in standby mode.
Note: When you change base currency, you must key in the new rates because all 
previously set exchange rates are set to zero.
Stopwatch
You can measure time and take intermediate times or 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 
.