67using tools and applicationsUse the calculator1. In Menu mode, select Organiser → Calculator.2. Use the keys that correspond to the calculatordisplay to perform basic mathematicaloperations.Convert currencies ormeasurements1. In Menu mode, select Organiser → Convertor→ a conversion type.2. Enter the currencies or measurements and unitsin the appropriate fields.Set a countdown timer1. In Menu mode, select Applications → Timer.2. Press <Set>.3. Enter the length of time to count down and press<OK>.4. Press the Confirm key to begin or pause thecountdown.5. When the timer expires, press <OK> to stop thealert.Use the stopwatch1. In Menu mode, select Applications →Stopwatch.2. Press the Confirm key to begin and record laptimes.3. When you are finished, press <Stop>.4. Press <Reset> to clear recorded times.