Zero

  • 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)

← −1 0 1 →
-1 0 1 2 3 4 5 6 7 8 9
Cardinal0, zero, "oh" (//), nought, naught, nil
OrdinalZeroth, noughth
DivisorsAll numbers
Binary02
Ternary03
Quaternary04
Quinary05
Senary06
Octal08
Duodecimal012
Hexadecimal016
Vigesimal020
Base 36036
Arabic & Kurdish٠
Urdu۰
Bengali
Hindu Numerals
Chinese零, 〇
Japanese零, 〇
Khmer
Thai

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 (//). Informal or slang terms for zero include zilch and zip.Ought and aught (/ɔːt/), as well as cipher, have also been used historically.

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