title: How can I store button presses into a different .xib and view them?
body: <p>I am creating a scientific calculator application, I have got all of the buttons working and the math. 
  What I am trying to do is add a second view that will show all the actions that the calculator has performed. The best way (I could think of) was to store all the button presses and display them in this secondary view. But I do not know how to pass button presses between views. </p>
  
  <p>I have done the tutorials on passing data from datafields to labels and that is something similar to how it should work, but the results need to not be replaced when more buttons are pressed as with the datafield to NSString method.</p>
  
  <p>Any help is greatly appreciated. If something is unclear please let me know. </p>