โ
See also: ๐
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Translingual
Symbol
โ
- up, above
- northward
- (phonetics)
- (a) (rare) egressive airstream mechanism when used with a letter for an ingressive sound, e.g. [สโ]
- (b) exhalation when used alone, [โ].
- Antonym: โ
- (number theory, computer science) exponentiation
- (number theory) Knuth arrow
- (go) an evaluation of a game position, up, in combinatorial-game-theory notation: {0|*}.[1][2]
- Antonym: โ
- (computing) The up-arrow key on a computer keyboard, used for navigation and various keyboard commands.
Usage notes
- (go): Arrows are iconically iterated: โ โก โ + โ; โค โก โ + โ + โ; โฐ โก โ + โ + โ + โ. The evaluations โจโ โ โค โฐโฉ are equivalent to โจโ โ โค โฑโฉ with the positions of black and white reversed.[1]
References
- Elwyn Berlekamp & David Wolfe (1994) Mathematical Go: Chilling Gets the Last Point, A. K. Peters Ltd, p. 18ff
- Fraenkel, Aviezri S. (1978). "Review: On numbers and games, by J. H. Conway; and Surreal numbers, by D. E. Knuth" (PDF). Bull. Amer. Math. Soc. 84 (6): 1328โ1336. doi:10.1090/s0002-9904-1978-14564-9, p. 1330.
English
Symbol
โ
Antonyms
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