The tridecatrix is equal to \( \lbrace 10,10,10 \rbrace \&\ 10 \) using the array of(&) operator and BEAF. Its array is intended to be a doedecational hypercube with side length 10. It has tridecal entries. The term was coined by Jonathan Bowers. Since BEAF has not been formalised by Bowers at this level, this number is currently ill-defined.
It is named after tridecal. More specifically, it may be a contraction of "tridecal matrix."
Since it is not defined by now, the following approximation is just an expected value.