Introduction and RPN calculator advice

[rprosperi]

First, welcome to the Forum, glad you decided to come in and play.

It's hard to give you advice unless you tell us what you will use this machine for going forward; you mentioned a diverse set of things done in the past, but maybe they do and maybe do not still apply... The best machine for balancing a checkbook is hardly good for Bessel Functions, and the reverse is probably just as true.

The 50g is exceeded only by the Prime in raw power, but it doesn't do (real) RPN and to call it quirky and annoying doesn't even come close to capturing it's persona.

HP's new 15c CE (Collector's Edition) should be strongly considered if you like the Voyager form factror, but of the others you mentioned the DM32 is probably the best choice; easy to pick up jsut crank numbers, easy to program, USB port allows easy backup and program exchange.

Lastly, as John mentioned the DM42 is probably the most powerful choice if small and light is important.