Re: HP-34C Curiosity Message #4 Posted by Gerson W. Barbosa on 23 Aug 2013, 6:16 p.m., in response to message #3 by Matt Agajanian
In short, there was no need for pi or any other function to be a shifted key because the HP-35 had so few functions that a shift key was not necessary at all (except for "arc", which was not exactly a shift key). As the number of functions increased one, two or even three shift keys were added to the keyboard. When calculators became programmable, the demand for primary function keys grew (R/S, A and B, on the HP-34C, for instance, would make no sense as shifted keys) and the less import Rv became a shifted function (it is shifted even on the HP-38C)
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