[Feature Request] History of operations

[nickdurante]

Hi,
First of all I wanted to say thank you for having developed such a clean and efficient calculator with scientific operations, I do use it a lot.

I see that you are planning to implement it and I think one way to do it would be to have a scrollable list of the past calculations where you could call them again and edit them by tapping on the item in the list.
It could be very handy for calculations of the same formula with different input parameters.