I was bored and found a HP-27S

[Steve Sabin]

(06-29-2021 01:13 AM)Eric Rechlin Wrote:  The 32S was indeed Leonardo. The 22S was actually Plato; DaVinci was the 42S.

Thanks for the time you put into those manuals. You can now see them preserved forever here:

Science Student Applications for the HP-22S: https://literature.hpcalc.org/items/1149

Technical Applications for the 27S and 19B: https://literature.hpcalc.org/items/1143

Yes, it's all coming back to me now. But what were the codenames for the 28S and the 27S? Those are escaping me.

Incidentally, the attribution they provided for me said that I developed the equations and problems in the book, but the truth is that I authored all of the verbiage except for the boilerplate stuff like legal statements, trademark/copyright attributions, etc. It was then edited by their staff, but only minimally. Technical publications such as manuals, datasheets, etc. from most companies almost never show the author, so being mentioned by name in this manner is both quite rare and quite nice.