Clean RPN for Android
This is rpn, and its also really great. easy to use once you realise how it works!
Doesn't have a stack. You have to put the entire expression on one line which seriously hampers the way I use an RPN calculator. It works as the author intended, but I suspect the author never used a real RPN calculator before.
Just another algebraic calculator.
I expected that hitting the enter button would push a number to the stack and that the operator buttons would perform operations on that stack as with other RPN calculators (real ones, not just apps). This was not the case. Once I worked out I had to put the entire expression on one line it was fine
It just isn't. Putting an algebraic expression on a line isn't RPN.
by X####:
Instead of being based around a stack, the RPN only applies to the current equation written on one line separated by spaces. The value is computed when enter is pressed. This also means there is no support for dup, roll, etc.