HP Prime or HP 50g

[Jake Schwartz]

(12-03-2020 11:30 PM)CMarangon Wrote:  HP Prime runned out of the traditional line of hp calculators "HP48 series and of HP calculators" tradition!

That makes me think of the original introduction of the 28C in 1987, which ultimately evolved into the 48SX in 1990. Comparing the 41 series (or even the 42S) to the 28/48 and going from RPN to RPL was probably as large a break in HP-calc "tradition" as the jump from the 50g to the Prime. In fact, that RPN-to-RPL jump was the reason for Bill Wickes' very useful 1990 book, "HP41/48 Transitions". At the time, people were very emotional regarding learning RPL and many were reluctant to make the significant mental leap. I think that reluctance was partially responsible for the birth of the WP-34S/31S and ultimately the current crop of SwissMicros machines. At this point, the RPL generation of machines are currently "in the rear-view mirror", while the RPN ones continue to be reborn. (I recognize that the continuing development of NewRPL might be represent a contradiction to this.)

Jake