This is version 2 android 1.1 This can be found on the android market if you want to check it out.
The code probably needs to be refactored as I probably have a few duplications in the calculate.java since it performs the same calculation for multiple classes. I just used if/else if statements for this, but it ended up being pretty long. So, I eventually need to go back and change a few things to make it cleaner.
It has been manually tested and does not seem to have any noticable bugs.
enjoy!
Spencer