Mark,
During that time frame, that HP-35 was an absolute godsend. I was in
submarines and a nuclear power plant operator and we frequently were
required to do ph and radiation shielding and dissipation problems. The
HP-35 was the first calculator (at least mass produced) that had the log
tables. The reverse polish notation was just a different mindset so
wasn't a problem. It reduced a longhand/sliderule problem from about an
hour to a couple of minutes. My HP-35 cost me $395.00 direct from HP,
and when the next one came out (HP-45) I bought that too. That was
$395, year 1972, enlisted man dollars and the calculators were worth
every cent they cost me and many others doing my job.
Rand E.
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Mark Marr-Lyon wrote:
>
> Getting pretty OT, but the first HP calculator to use LED's came out in
> 1971. The first HP calculator that Algebra teachers probably had to
> worry about banning was the HP-35 in 1972. I've got a 35 with a manual
> from 1973, and the manual is the best thing about it!
>
> " SHIRT POCKET POWER
> Our object in developing the HP-35 was to give you a high precision
> portable electronic slide rule. We thought you'd like to have something
> only fictional heroes like James Bond, Walter Mitty or Dick Tracy are
> supposed to own."
>
> Mark Marr-Lyon
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