$n*n$ is a square number. Is there a corresponding descriptive term for $n^n$?
Auto-power? 2nd-order tetration?
$n*n$ is a square number. Is there a corresponding descriptive term for $n^n$?
Auto-power? 2nd-order tetration?
There was the name "Wexzal" introduced. Fantini/Kloepfer discussed it in that way:
This book is about the solution to and properties of the Coupled Exponent equation (y=x^x). The solution to this equation is called the "Coupled Root function".
(but I did not read that name elsewhere, so it seems that name didn't make it through the world)
"Wexzal", Jay A. Fantini Gilbert C. Kloepfer (~1999)
online available, maybe you must employ the wayback-machine.
I've most often heard simply "$n$ to the $n$". The term "hyperpower" is sometimes used for tetration, so I guess you could say "$n$ to the second hyperpower".
There is no common term for $n^n$. I think a reasonable term if needed for casual use would be super square based on: