73using tools and applicationsUse the calculator1. In Idle mode, press [OK] → Applications →Calculator.2. Use the keys that correspond to the calculatordisplay to perform basic mathematicaloperations.Convert currencies ormeasurements1. In Idle mode, press [OK] → Applications →Converter → a conversion type.2. Enter the currencies or measurements and unitsin the appropriate fields.Set a countdown timer1. In Idle mode, press [OK] → Applications →Timer.2. Press <Set>.3. Enter hours or minutes to count down and press<OK>.4. Press [OK] to begin or pause the countdown.5. When the timer expires, press <OK> to stop thealert.Use the stopwatch1. In Idle mode, press [OK] → Applications →Stopwatch.2. Press [OK] to begin and record lap times.3. When you are finished, press <Stop>.4. Press <Reset> to clear recorded times.

Samsung GT-S3830U User Manual