Xappol

Xappol is equal to {10,10 (2) 2}, or 10 by 10 array of 10's in BEAF.
The xappol is written out in the multirowed array notation as:
 / 10 10 10 10 10 10 10 10 10 10 \
 
 / 10 10 10 10 10 10 10 10 10 10 \
 
 / 10 10 10 10 10 10 10 10 10 10 \
 
 / 10 10 10 10 10 10 10 10 10 10 \
 
 / 10 10 10 10 10 10 10 10 10 10 \ 
 
 \ 10 10 10 10 10 10 10 10 10 10 / 
 
 \ 10 10 10 10 10 10 10 10 10 10 / 
 
 \ 10 10 10 10 10 10 10 10 10 10 / 
 
 \ 10 10 10 10 10 10 10 10 10 10 / 
 
 \ 10 10 10 10 10 10 10 10 10 10 /
== Approximations ==
Notation 	Approximation
Bird's array notation 	\(\{10,10 [3] 2\}\) (exact)
Cascading-E notation 	\(\textrm E10\#\textrm{^}\#\#10\)
Hyperfactorial array notation	\(10![1,[1,1,3],1,2]\)
Fast-growing hierarchy 	\(f_{\omega^{\omega^2}}(10)\)
Hardy hierarchy 	\(H_{\omega^{\omega^{\omega^2}}}(10)\)
Slow-growing hierarchy (using this system
of fundamental sequences)	\(g_{\psi_0(\Omega^{\Omega^{\Omega\omega}})}(10)\)
== Trivia ==
* The Googology Wiki IRC channel used to have a bot named XappolBot.
* Jonathan Bowers describes Xappol as “unspeakably huge” on his Infinity Scrapers website. He also writes out Xappol's full array on his website. However, he writes it incorrectly, giving it 11 rows instead of 10.
== Sources ==
== See also ==
ja:ザッポル
Category:Numbers
Category:Numbers by Jonathan Bowers
Category:Planar array notation
Category:Exponentiated linear omega level
Category:BEAF