## FANDOM

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Decation refers to the 10th hyperoperation starting from addition. It is equal to $$a \uparrow^{8}b$$, in Knuth's up-arrow notation.[1]

Decation can be written in BEAF and BAN as $$\{a,b,8\}$$, in chained arrow notation as $$a \rightarrow b \rightarrow 8$$, in the Graham Array Notation as $$[a,b,8]$$, and in Hyper-E notation as E(a)1#1#1#1#1#1#1#b.

Decational growth rate is equivalent to $$f_9(n)$$ in the fast-growing hierarchy.

## Sources Edit

1. Decation on Net Helper
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