
Hewlett Packard HP 20S Scientific Calculator
The HP 20S is an excellent Calculator. It is a do-it all scientific calculator, and despite being Algebraic Entry is very useful and compact. The button feel and accuracy are very attractive features of this calculator.
*Self test by Pressing the [C] key and [y^x]. Press any key and begin the keyboard test left to right and top to bottom.
*Reset by pressing [C] and [LN].
If you're looking for RPN, buy the HP32sii- they look very similar, but inside they are not. The 32sii costs twice as much, but is worth it.
Related Calculators:
The 20S is a part of the Pioneer Series of HP calculators made from 1989 until 2000 or 2001. The Pioneer 10-series contained the Business Calculators: the HP 10b, 14b, 17b, 17bii. The Pioneer 20-series contained the scientific (algebraic) calculators including the 20S, 21S (Statistics), 22S and 27S. Lastly, the Pioneer 30 and 40 series contained the high-end RPN scientific series: 32S, 32sii, and the 42S.
Review ID: 10000000010391964

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