RPN/RPL is still relevant

[Matt Agajanian]

(04-10-2014 04:29 PM)CR Haeger Wrote:  

(04-10-2014 04:57 AM)Matt Agajanian Wrote:  You see my point! Any logic system (or even language) which is heavily dependent on extra symbols or punctuation so as to remove/avoid ambiguity is higly inefficient. That's what makes RPN such a model of simple elegance. Its straightforward syntax and structure completely fulfill the idea of flawless mathematical and logic methodologies.

Coming from a 15C a long time ago, I generally agree. "Efficiency" sometimes depends on the calculation(s) being performed. If you make a keying error during the RPN entry, you may be able to recover via an UNDO key if available. If not, you get to inefficiently reenter stuff.

I will say that algebraic entry (TI36x, HP Prime for me) can offer some visual feedback of the expression entered and some useful copy/pasting of prior expressions.

Best,
Carl

I'm curious. Although I adhere to LSTx as a fine example of an error recovery tool, how do you see the efficiency and usefulness of 'Last X' on non-RPL HP's?