this is a reverse polish notation calculator that works very well. I used reverse polish notation , because it is much simpler to program in. I could put more features in later but right now i like it. And for people who do not know what reverse polish notation is, here's an example. Standard notation would be 5+5= where reverse polish notation is 5=5+ Its just a very different sysem. Had to change some programming to make it work.(not as effecient)
