Thank you very much! Big numbers also follow the math, e.g. when you do x2 there is a rotation of the last digit between 2,4,6 and 8
I meant for ^2, mostly. If I have 2642, for instance, I dont know how many digits I will have when I use the ^2 button.
Fair enough, I think If I add 'undo' it would make life easier.
