I worked on this for a while in the airport and on the plane yesterday after reading my feedback on my first ship i decided to tackle a couple of things the first of which was displaying what operation you had selected that was a relatively easy fix and i solved it quickly the second was to add visual feedback of button presses which after much effort i added by using the classes! macro and stylesheets using css that took significant time to figure out. i am currently working on another bit of feedback i received which was to add the ability for both fractions and decimals to be viewed these changes are almost complete and i should be able to release them later today after testing.