HP-12C gets 'Entry-RPN' or Error in the QSG?

[Joe Horn]

(07-05-2014 02:46 AM)Thomas Klemm Wrote:  

(07-04-2014 11:04 PM)Joe Horn Wrote:  2 ENTER 3 + ENTER 4 +

It's about the difference between:

2 ENTER 3 +

and

2 ENTER 3 ENTER +

With an HP-12C you get 5 and 6 while the result is 5 in both cases when using an HP-48 (or 20B/30B).

Hold on. You said that the following is incorrect in the 12C doc:

"Pressing ENTER is optional after entering a number, if the next key pressed is an operation." (emphasis added)

In your example, the ENTER does NOT follow an operation (as specified by HP's doc) but rather follows a numeric entry (which is NOT the situation they were talking about). In my example, it DOES follow an operation. HP's doc is correct.

You are absolutely correct that 1 ENTER 2 ENTER 3 + yields difference results in the 12C and the 20b/30b. But that's not the situation they were talking about in the above quotation from HP's doc.