tetration
Meanings
Plural: tetrations
Noun
- The arithmetic operator consisting of repeated exponentiation, by analogy with exponentiation being repeated multiplication and multiplication being repeated addition, ᵇᵃ denoting a to the power of a to the power of … to the power of a, in which a appears b times.
Origin / Etymology
PIE word
*kʷetwóres
From tetra- (prefix meaning ‘four’) + (itera)tion, from the fact that tetration is in fourth place after addition, multiplication, and exponentiation. The word was coined by the English mathematician Reuben Goodstein (1912–1985).
Synonyms
exponential map, hyper4, hyperpower, power tower, superexponentiation
Scrabble Score: 0
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tetration is not valid in International Collins CSW Dictionary