Calculator of Formulas

Awesome app!!! I build race cars and run race teams for a living so I need to do lots of calculations all the time. I wanted to learn reverse polish notation and be able to program the formulas into memory. I searched for apps and came upon this one. I did not realize how great it was at first, which is a compliment to the author in its simplicity. The author totally hit the nail on the head. I love this app!! Now I have lots of calculations at my fingertips, ready to use and play with. When you get used to the way to graph functions in the app and the ability to change any variable and see it in the graphs, you can “see through the forest and actually see the trees”. I find myself playing with simple everyday relationships, putting them into some kind of mathematical statement and being able to “mix it up” and gain an understanding of something that was easy to miss without the ability to analyze it “fast and easy”. It would be nice to be able to label the variables. That would make it easier to enter the values. Having to remember which variables are which with different formulas makes it a challenge. Great job! Great app!

In summary, skip this one. There are much better rpn calculator apps out there. The calculator is very powerful, however if you press the help button, you can forget it. There is absolutely no way to return to the application. What programmer forgets such a simple thing as a means to return to the application? Was this app not tested? Forget about finding any contact info as this programmer doesn't provide any support. Nothing, nada, zip. So, you either need to know how to use a powerful rpn calculator or look for an app with programmer support, which is my suggestion.

There is no way to return to calculator once tutorial is entered. I am using iPhone 4S.