48GX: Singapore vs Indonesia

[Joe Horn]

(07-18-2018 09:08 PM)Benjer Wrote:  I wonder if it doesn't have something to do with the switch from dual-injected keys to printed keys.

Good observation! I just checked the two GX's above, and you're right: the classic "x" and "y" are dual injected, and the newer "x" and "y" are printed on.

(07-18-2018 09:08 PM)Benjer Wrote:  This of course offers no explanation as to why the x on the sqrt key was more or less unchanged.

My guess is because \({ y }^{ x }\) and \(1/x\) are easily typeset in most software, but \(\sqrt { x } \) is not, so they just "photocopied" that key. My guess may not be correct, since software certainly did exist at that time to typeset math, and I think HP would have been able to afford it.