RPN is so efficient when you are running a series of calcs when you learn it. I feel icky now if I use algebraic input or calculator and I have to backspace. It

RPN is so efficient when you are running a series of calcs when you learn it. I feel icky now if I use algebraic input or calculator and I have to backspace. It's like using a word processor, not a calculator! I am in Emacs all day for all things. It is a big mess of a world I like muddying about in!