Specifications

Menu -> Tools
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4.4 Tools
Tools
From this submenu, you can use the Calculator, view the Calendar, set
the Alarm, change the current Time Zone, enable DST (Daylight Saving
Time) or set Time Format.
4.4.1 Calculator
ToolsCalculator
This function enables you to add, subtract, multiply and divide.
1. The screen will initially display the number “0”. Enter the first number
to be calculated.
- To enter a minus sign, press (only the first number can be
made negative); to enter a decimal point, press
2. Press , , or to enter the plus, minus, multiplication or
division signs respectively.
3. Enter the second number.
- To enter “0”, press and ; “0.0” will be displayed
4. Press to display the calculation result.
- To conduct further calculations from this result, repeat steps 2-4
5. When starting a new calculation, if the result from the last calculation
is not “0”, press the right soft key (Clear) to initialise.
 To delete the character you just entered, press the right soft key
(Clear); to delete all entered characters, press and hold the right soft
key (Clear)
 A maximum of 9 digits (including minus sign and decimal point) can
be entered at one time