I was bored and found a HP-27S

[Steve Sabin]

(06-28-2021 11:49 PM)Don Shepherd Wrote:  

(06-28-2021 10:23 AM)Steve Sabin Wrote:  The manuals I wrote are Science Student Applications for the HP-22S and Technical Applications for the 27S and 19B. I have copies of both.

Steve, it is great to finally meet the author of the 27s/19b Technical Applications manual. You did a great job describing the solver features that do indeed make the solver a genuine programming language. I have spent the better part of the last 13 or 14 years writing solver equations that are really programs, including a few games.

You guys really achieved a lot making this solver; it has given me thousands of hours of pleasure.

Don

Thank you, Don, but I was merely the "messenger" and had no role in actually creating that functionality - merely in communicating it. It was curious that they didn't want to include such powerful functionality in the actual manual and reserved it instead for that special "supplemental" publication.

I will have to read at this forum more to remember some of the nomenclature used to refer to the calculating platform / form factor, but I believe I have seen it here referred to as the Pioneer Series. The 14B, 22S, 27S, and 32S all used the same form factor with blue letters reserved for scientific models and orange for financial models. I vaguely recall that the 32S was project codename "Leonardo". The 22S might have been "DaVinci".