CASIO fx-4000P scientific calculator from 1986

[ijabbott]

(06-06-2019 06:54 PM)cdmackay Wrote:  

(06-06-2019 04:20 PM)ijabbott Wrote:  They also dropped the bitwise logic operations (but kept the BIN/OCT/HEX/DEC arithmetic) between the fx-3400P and fx-3600P, added them back in for the fx-3600Pv (another one for you to seek out), and removed them again for the fx-3800P. (EDIT: There also seems to be a fx-3600PV (with a capital V) that doesn't have the bitwise operations, just to confuse things further! EDIT 2: That one seems to be a fake Casio according to this.) Somewhat annoyingly, I bought a fx-3800P from a major UK stationers back in the day and didn't discover the lack of bitwise operations until it was too late.

sigh; I'd not really looked into the Pv models, assuming them to be non-UK, on which I was concentrating. But now I think I will have to!

I think the fx-3600Pv (the real one, that is) probably was non-UK although the user manual was printed in at least English, Spanish, French, Chinese, Korean, and Indonesian. Some of the images of the (real) calculator I have seen have "H.K.E.A. APPROVED" printed on them (and so do pictures of the fake one), suggesting it was sold like that in Hong Kong.