Re: HP20b - 2 INPUT 3 INPUT + Message #18 Posted by Paul Brogger on 21 July 2008, 2:54 p.m., in response to message #17 by Gene Wright
I'm probably missing something obvious (and/or this has been discussed at length elsewhere), but why on the "true" RPN machines does ENTER lift the stack?
Seems to me that if it were just used to terminate numeric entry, and if any subsequent numeric key would lift the stack as part of the entry of a new value, the operation would be more straightforward, and much of confusion experienced by new/casual RPN users would have been avoided.
I suppose a second "lift stack" function (and another key to put it on) would have been required? (Alternatively, an ENTER keypress after any operation other than numeric entry might have effected a lift.)
I hear that H-P did exhaustive evaluation of such things, and probably everyone but me knows the answer(s) -- but I am curious.
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