logₓy

[Benjer]

I was having the opposite problem the other day trying to (somewhat quickly) take the log_10 of some number on a Casio fx-991EX, but the button I was using required an argument for the base and I thought it strange there'd be a button for that but not one for log_10. I did ultimately find it as a shifted function on the (-) key. At the time I thought it interesting that logₓy had its own button but log_10 didn't.