array -> 7 ? No... 8 "Boxes" 
from Box 0 to Box 7 = 8 boxes
The arrays need data into them. I init my arrays, even it is Zero's. The code need it. I always init my variables.
My full calculator code is compiling. A bug in the Add section, an execution bug. I need to check it out, and maybe re-code that section.
The problem with me when I code, I have "writter's block". My mind is just "blank" and I have no clue how can I do this, and it is the lack of ideas of how can I program this out. That what I call "Writter's block".