Re: is the HP27S a rare model? Message #9 Posted by Jan (CH) on 2 Mar 2006, 2:28 a.m., in response to message #5 by Karl Schneider
Yes, indeed. 27 S is quite rare and not as popular, maybe because of the lack of UPN. However, its implementation of the solver is excellent; the simplicity of the keyboard with one shift key only (blue) is perfect. When I bought it early nineties, I was very disappointed to figure out, that it had no RPN. After some time I got accustomed to it and started to like its very good algebraic system with better parenthesis implementation than other calcs.
My 27S had been stolen. It took about me almost a year to find a decent replacement and it was quite expensive. However following an advice from this forum, I bought a 19BII and found it a very adequate substitution. The designation "business consultant" is somewhat missleading. It is a general and versatile calc. The solver implemetation has some manor drawbacks, but setting enough parenthesis it does the job very well. And it has some goodies not available on 27S, such as conversions, financial and of course RPN. There are plenty of them around. And even 17BII is adequate and excellent, if you do not need sin/cos/tan functions
Jan
Switzerland
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