|Type, Precision, Input Mode||Scientific, 12 BCD digits, exponent ±99, Reverse Polish Notation|
|Memory||Registers 0-9 where register 0 is also used for
4-level stack with regular Helett-Packard behaviour.
|Special features||Uses RPN. Hyperbolic trigonometric functions, unit conversions.|
|Original Pricing, Production||Unknown, approx. 1977, by Omron Tateisi Electronics Co., Kyoto, Omron Europe GmbH, Hamburg, Omron Corp. of America, Chicago|
|Batteries||3x AA or external power supply|
|Dimensions||Length 16.2cm, Width 8.5cm, Height 3.5cm|
Manual (PDF, 50 pages, English/German)
Vintage Electronic Calculator Manuals.
|Comment||One of the few non-HP calculators that uses RPN!
quite simple but provides a surprisingly wide range of functions thru
of the "F", "inv" and "hyp" keys.
The design is clunky and it is really slow, calculating 2 to the power of 3 takes about 3.5 seconds!
Apparently the most complex unit that Omron ever made.
This was the first real scientific calculator that it I owned. I always wanted to have a RPN unit and this one I could afford.
There was a similar unit SR10.
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