Re: HP calculators: origin of prefix key labels f and g Message #2 Posted by Walter B on 21 Nov 2012, 4:17 p.m., in response to message #1 by M Habl
In mathematics, f and g are common names for arbitrary functions. The first appearance of these named prefixes was on the HP-65, which had f, f^(-1), and g, as you can see in this very museum. I think HP took these letters from math - but that's just my personal view.
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