Bye bye Prime

[Don Shepherd]

(08-28-2014 08:55 PM)walter b Wrote:  

(08-28-2014 05:44 PM)Joe Horn Wrote:  If that's the defining difference, then the HP Prime is an RPN machine, not an RPL machine, because Prime's RPN stack is 128 levels high, no more, regardless of amount of memory available. ;-)

Thanks for that information - I didn't know that before. I thought of Wickes' RPL. Seems my definition was too simple then. Would "RPN features a finite stack with top level repetition and roll" be better to differentiate between RPN and RPL?

d:-)

I always thought the principle difference between RPN and RPL machines was in the programming: RPN machines (65, 12c, 32sii) used easy-to-understand keystroke programming while RPL machines (48, 49) used those weird commands like <dup> <dup> and so on, which I never took the time to learn although I admit it seems to be a powerful system.