Too bad no manufacturer (AFAIK) has offered RPN as a simply set
*option*- like radians vs. degrees for trig. It would add negligible
cost, and modern calculators can show several levels of stack at once.

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
Info for manufacturers:
http://www.trexon.com
Embedded software/hardware/analog Info for designers:
http://www.speff.com

If you happen across an old HP17BII, it has selectable RPN or AE modes. But
be aware the HP17B is AE only.