Allows you to calculate basic and advanced mathematics
1. Search the Android Market/Itunes store for "Graphing Calculator"
2. Hit "Install"
3. After you hit install, click open
4. Once open, look at the bottom of the screen. You have the option for a regular, scientific, or graphing calculator
Math Ref App
Math reference app that shows you many different topics and over 700 different formulas
1. In Itunes, search Math Ref Free
2. Download and open the app
3. In the top left corner, click "topics"
4. Click your topic and have fun!