I suspect the difference is that your friend's
office is mainly full
of baby boomers who figured out how to use a HP-12C to do their job
back in the day, and now don't want to learn how to do it on one of
those newfangled computer thingies.
(Wow, speaking of feelings of smug superiority!)
I'm sure that happens. But there are plenty of other reasons. For
example, I'm a computer geek by both vocation and avocation, yet I use
calculators. For some tasks I even prefer them.
I have no particular bias any direction on the question of prefix
operators ("Polish") versus postfix operators ("reverse Polish")
versus
infix operators ("algebraeic"). (None that's independent of the task,
that is; there certainly are tasks for which I prefer one or another,
though among calculator tasks they're relatively rare.)
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