Tethrispatialcross

The tethrispatialcross (formerly tethrasquared-spatialator) is equal to E100#^^##>#^#100 using Extended Cascading-E Notation. The term was coined by Sbiis Saibian.
== Etymology ==
The name of this number comes from the infix "-spatial-" and the number tethritercross.
== Approximations in other notations ==
Notation 	Approximation
BEAF 	X^^^(X^X) & 100
Bird's array notation 	\(\{100,100[1 \backslash 1 \backslash 1[2]2]2\}\)
Fast-growing hierarchy	\(f_{\zeta_{\omega^{\omega} } }(100)\)
Hardy hierarchy 	\(H_{\zeta_{\omega^{\omega} } }(100)\)
Slow-growing hierarchy	???
== Sources ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Extended Cascading-E numbers
Category:Binary phi level