Sliderules, Logs, and Prodigies

[John Anonymous MacDonald]

> From: ichudov at algebra.com (Igor Chudov @ home):
> 
> I also used RPN calculators 10 years ago, in high school, in Russia.
> Still miss them.  Which model (for no more than $40 or so) is the best
> around here?
> 
> Sorry if this question has already been answered here, nowadays it is 
> pretty tough list to read.

I recommend the GNU emacs calculator.  While not quite as portable as
some of the HP calculators, it is free, and is definitely the best
calculator I have ever seen, period.