How to Install an RPN Calculator for the Android

1. Open the 'Applications' panel on your Android device, tapping 'Applications' or pressing the associated physical menu button.

2. Tap 'Market.' Type 'RPN Calculator' and press 'Enter.'

3. Tap 'RPN Calculator.' Tap 'Install' and 'OK.' RPN Calculator installs on your Android device. You can use it as soon as the installation completes. It may take some adjustment to become used to the RPN calculation system, and you may want to have your default calculator as a backup until you adjust.