B A R R Y wrote:
I think mechanical E6B's are very useful, I don't feel the need to own
an electronic version. However, computers and calculators have done
much for science and engineering.

I am not advocating using sliderules at work (though, it can
be fun), but folks who started with them have a different
mind set when it comes to numbers, like a better understanding
of what constitutes significant figures and order of magnitudes...
a bit for the same reason glider pilots make better powered pilots
(ok, give me some credit for trying to bringing it back on
topic :-)

--Sylvain