Knuth Arrow Notation

Concept

A notation for very large numbers, which Knuth explained to Richard Feynman. Feynman playfully challenged Knuth to extend the notation to complex numbers of arrows.

Mentioned in 2 videos

Videos Mentioning Knuth Arrow Notation

Donald Knuth: Programming, Algorithms, Hard Problems & the Game of Life | Lex Fridman Podcast #219

Donald Knuth: Programming, Algorithms, Hard Problems & the Game of Life | Lex Fridman Podcast #219

Lex Fridman

A notation for very large numbers, which Knuth explained to Richard Feynman. Feynman playfully challenged Knuth to extend the notation to complex numbers of arrows.

Donald Knuth: Algorithms, Complexity, and The Art of Computer Programming | Lex Fridman Podcast #62

Donald Knuth: Algorithms, Complexity, and The Art of Computer Programming | Lex Fridman Podcast #62

Lex Fridman

A notation for extremely large numbers, invented by Knuth (though he notes a similar concept was invented earlier), which allows for expressing numbers far beyond human comprehension.