Retro Review: BA-55

[martinot]

(02-20-2018 10:46 PM)Massimo Gnerucci Wrote:  

(02-20-2018 09:54 PM)martinot Wrote:  Trivia question: I wonder when (year? calculator model) TI changed their mind and went from printing [y^x] to [x^y] on the power key?

Don't know about TI but HP went from x^y (HP 35) to y^x (HP 80) in 1973.

Which makes sense (from an RPN perspective, and the order of arguments on the stack).