The bingulus is equal to {10,100 (0,0,2) 2} in BEAF. Its structural array has 1001002*2 entries total. The term was coined by Jonathan Bowers.[1]


The name of this number is based on Latin prefix "bi-" and the number "gingulus".


Notation Approximation
Bird's array notation \(\{10,100 [1,1,3] 2\}\)
Aarex's array notation \(\{10,100 [1[3]3] 2\}\)
Cascading-E notation \(E100\#\text{^}(\#\text{^}\#\#*\#\text{^}\#\#)100\)
Hyperfactorial Array Notation \(100![1,[1,[1,2,3],1,2],1,3]\)
Fast-growing hierarchy \(f_{\omega^{\omega^{(\omega^2) 2}}}(100)\)
Hardy hierarchy \(H_{\omega^{\omega^{\omega^{(\omega^2) 2}}}}(100)\)
Slow-growing hierarchy \(g_{\vartheta(\Omega^{\Omega^{\Omega^2+\Omega\omega}})}(100)\)


  1. Bowers, JonathanInfinity Scrapers. Retrieved January 2013.

See also

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