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I was bored and found a HP-27S
06-10-2014, 04:45 PM
Post: #13
RE: I was bored and found a HP-27S
(06-10-2014 03:52 PM)Katie Wasserman Wrote:  
(06-10-2014 11:18 AM)Don Shepherd Wrote:  In my opinion, one of HP's greatest achievements was the inclusion of programming constructs such as IF, sigma (loop), and L() and G() in the solver found in several calculator models, including the 27s. This made the solver more than just an equation solver; it is a real minimum programming language.

HP should have received some type of award for this solver, but we are all beneficiaries.

If I recall correctly the HP "step-by-step" publication called HP-27S/19B Technical Applications introduced L(), G() and other solver techniques. This was available when the 27S and 19B were first released. It showed how you could use the solver to compute coordinated transforms, solve linear equations, do complex variable arithmetic, find GCD and factor prime among other things. Pretty amazing for a "non-programmable" calculator.

Yes indeed this manual is a real treasue for 27S, 17B/BII and 19B/BII owners. Reveals several undocumented (until this manual was released) features in those machines, and lots of gory examples to illustrate. Wish they had made more manuals like this one. I got one cheap on TAS last year, a steal. Also, it's on the Museum DVD; like so many other things in there, this alone is worth the price.

Check this out if you have one of these machines, and note that the Title says it's for 27S/19B only, but the 17B/BII (original Pioneer models) use the same Solver Don described. Later 17B stepchildren unfortunately have the Solve which has several issues, described by Don in earlier Forum posts (easy to find w/search).

--Bob Prosperi
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Messages In This Thread
I was bored and found a HP-27S - jebem - 06-09-2014, 10:38 PM
RE: I was bored and found a HP-27S - jebem - 06-10-2014, 09:35 AM
RE: I was bored and found a HP-27S - rprosperi - 06-10-2014 04:45 PM
RE: I was bored and found a HP-27S - jebem - 06-25-2014, 06:49 PM
RE: I was bored and found a HP-27S - jebem - 06-26-2014, 01:44 PM
RE: I was bored and found a HP-27S - jebem - 06-26-2014, 01:40 PM
RE: I was bored and found a HP-27S - jebem - 06-26-2014, 03:57 PM
RE: I was bored and found a HP-27S - jebem - 06-27-2014, 01:15 PM
RE: I was bored and found a HP-27S - jebem - 06-27-2014, 08:50 PM
RE: I was bored and found a HP-27S - HP67 - 06-27-2014, 02:56 PM
RE: I was bored and found a HP-27S - HP67 - 06-27-2014, 03:28 PM
RE: I was bored and found a HP-27S - jebem - 06-27-2014, 10:18 PM
RE: I was bored and found a HP-27S - jebem - 06-27-2014, 10:58 PM
RE: I was bored and found a HP-27S - jebem - 06-28-2014, 08:02 AM
RE: I was bored and found a HP-27S - jebem - 06-27-2014, 10:46 PM
RE: I was bored and found a HP-27S - jebem - 06-28-2014, 07:55 AM
RE: I was bored and found a HP-27S - jebem - 06-27-2014, 10:56 PM
RE: I was bored and found a HP-27S - jebem - 06-27-2014, 11:05 PM
RE: I was bored and found a HP-27S - jebem - 06-28-2014, 04:44 PM
RE: I was bored and found a HP-27S - jebem - 06-28-2014, 05:37 PM
HP-27S that does not turn on - franz.b - 11-06-2020, 08:24 PM
RE: I was bored and found a HP-27S - jebem - 11-09-2020, 07:14 AM



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