Undecation

Undecation is the 11th hyperoperation, which is equal to the binary function \(\uparrow^{9}\) in Knuth's up-arrow notation.Aarex Hyper Operators
The n undecated to m is n decated to n decated to ... decated to n (m n's).
"a undecated to b" can be written in BEAF as \(\{a,b,9\}\), in chained arrow notation as \(a \rightarrow b \rightarrow 9\) and in Hyper-E notation as E[a]1#1#1#1#1#1#1#1#b.
Undecational growth rate is comparable to \(f_{10}(n)\) in the fast-growing hierarchy.
Cloudy176 called it Hendecation in his faketest F page.User:Cloudy176/faketest/F
== Examples ==
n undecated to 2 = \(a \uparrow^{9} 2\) = \(a \uparrow^{8} a\)
== Sources ==
== See also ==
Category:Functions
Category:Binary operators
Category:BEAF
Category:Hyper operators