Retro Review: BA-55

[martinot]

(02-20-2018 11:06 PM)Gene Wrote:  What TI models have X^Y before 1990 or so?

I can't think of any.

?

Just curious; when did they change that, even if it was after 1990?

(02-21-2018 03:00 AM)Eddie W. Shore Wrote:  I don't recall TI ever having the power key marked [x^y].

I just see that on some current calculators, TI have changed from the old [y^x] button to a [X^□] button (which I think makes more sense on an algebraic calculator, if you think about the order of the arguments).


Here is a comparison between the current HP calc 35s and current TI calc 36X-Pro:



This looks very logic (to me at least) as 35s is RPN and 36X algebraic.


I think I have also seen just [^] on some current graphing TI calculators, and on some others TI's the classic algebraic version [x^y] (even if I do not remember which TI models).