Hi guys! Here is my own calculator that I did entirely on my iPhone in two days. I'm actually pretty happy with the result. In my opinion, it is a more useful calculator than the one that comes with iOS. The one downside is that it takes more taps to open my calcultor in Pythonista than a normal calculator app, and with an iPhone 4 and iOS 7, more taps means exponentially more time... :D

You can get it here. It should also work on an iPad, but I wouldn't know because I haven't got one.

Let me know what you think!

Features:

• Enter full mathematical expressions with parenthesis (unlike the calculator that comes with iOS)

• Comparison support: for example, sin(pi) > cos(pi) yields True

• Trig functions and their arc variations

• Constants: pi and e

• Exponentiation, factorization and natural logarithms

• Press = equal without a current expression to repeat the last calculation (specially useful when paired with the Ans button)

• Handles errors with style (try dividing by zero to see what happens!)

• Press the result screen at the top to copy the last result to the clipboard

@n8o Yes, in fact there is. On this page, search for Script Integration. That page has loads of cool scripts, and one of them does exactly what you want.

@ccc Yes, yes it is indeed!

@Sebastian As dificult as that may seem, I did write this entirely on my iPhone 4! I was on vacation and I didn't have my computer, but I had this urge to code, for some reason, and Pythonista is such an amazing app... And so it happened that my perserverance outmatched my tiny screen :)

@due3die Sorry, slight problem when copying & pasting. It should work now, please redownload the gist.