LG Revolution User Manual page 174

Tools
172
Calculator
Allows you to perform simple mathematical calculations.
To open and use the Calculator
# Touch the Apps Key
# Enter numbers and arithmetic operators on the Basic panel.
# Drag the Basic panel to the left to open the Advanced panel.
# Touch and hold the Calculator's display to open a menu where you can
copy what you've entered and access other tools.
# Touch Clear to delete the last number or operator you entered. Touch
and hold Clear to delete all of the entered information.
> Calculator .