- Zero, 0, is neither positive or negative
- Any real number multiplied by 0 is 0, 0 * n = 0
- 0 divided by any real number other than 0 is 0, \frac { 0 }{ n } =0
- When n is a real number not equal to 0 itself, \frac { n }{ 0 } is undefined
- Anomaly: zero factorial, 0! = 1
Zero (Wikipedia)
This article is about the number and digit 0. It is not to be confused with the letter O or the East Asian symbol ⭕, or O mark used to represent affirmation.
"Zero" redirects here. For other uses, see 0 (disambiguation) and Zero (disambiguation).
"Naught" redirects here. For the Stolen Babies album, see Naught (album).
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Cardinal | 0, zero, "oh" (/oʊ/), nought, naught, nil | |||
Ordinal | Zeroth, noughth | |||
Divisors | All numbers | |||
Binary | 02 | |||
Ternary | 03 | |||
Quaternary | 04 | |||
Quinary | 05 | |||
Senary | 06 | |||
Octal | 08 | |||
Duodecimal | 012 | |||
Hexadecimal | 016 | |||
Vigesimal | 020 | |||
Base 36 | 036 | |||
Arabic & Kurdish | ٠ | |||
Urdu | ||||
Bengali | ০ | |||
Hindu Numerals | ० | |||
Chinese | 零, 〇 | |||
Japanese | 零, 〇 | |||
Khmer | ០ | |||
Thai | ๐ |
0 (zero) is a number, and the numerical digit used to represent that number in numerals. It fulfills a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures. As a digit, 0 is used as a placeholder in place value systems. Names for the number 0 in English include zero, nought (UK), naught (US) (/nɔːt/), nil, or—in contexts where at least one adjacent digit distinguishes it from the letter "O"—oh or o (/oʊ/). Informal or slang terms for zero include zilch and zip.Ought and aught (/ɔːt/), as well as cipher, have also been used historically.