HP Forum Archive 10

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20s scientific calc. Message #1 Posted by Joe Edwards on 3 Feb 2003, 4:54 p.m. Can anyone provide info on this calc? I couldn't locate any info in the museum regarding it. It appears to be algebraic, not RPN; is it programmable? Thanks. Joe

Re: 20s scientific calc. Message #2 Posted by Randy Sloyer on 3 Feb 2003, 5:44 p.m., in response to message #1 by Joe Edwards Yes, it is algebraic and it is programmable. It's the older classic programming model with keystroke programming to 99 steps, since it has a 7 segment display. It does have some nice features for an inexpensive unit, including a root finder, integration, complex numbers, 3x3 matrix ops, quadratic, and curve fitting. Not bad for $20, now if it could only do RPN... Here's a link to HP's site for a comparison with the newer models: http://h20015.www2.hp.com/en/document.jhtml?lc=en&docName=bpia5154&prodId=hp32scalcu20672

Re: 20s scientific calc. Message #3 Posted by Joe Edwards on 3 Feb 2003, 6:27 p.m., in response to message #2 by Randy Sloyer Okay, I'll bit. WHY don't they make it RPN? Wasn't that what HP was famous for? Joe

Re: 20s scientific calc. Message #4 Posted by Pyerre on 3 Feb 2003, 8:41 p.m., in response to message #1 by Joe Edwards Beside the RPN devices : http://www.copia.com.au/hp_scientific_calculators_compar.html#Physical Features The HP-20S is a nice small algebraic programmable scientific calculator. Yes, "if it could only do RPN" !

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