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    0 - Wikipedia

    • 0 (zero) is a number representing an empty quantity. Adding (or subtracting) 0 to any number leaves that number unchanged; in mathematical terminology, 0 is the additive identity of the integers, rational numbers, real numbers, and complex numbers, as well as other algebraic structures. Multiplying any number by 0 results in 0, and consequently division by zero h… See more

    Etymology

    The word zero came into the English language via French zéro from the Italian zero, a contraction of the Venetian zevero … See more

    History

    Ancient Egyptian numerals were of base 10. They used hieroglyphs for the digits and were not positional. In one papyrus written around 1770 BC, a scribe recorded daily incomes and expenditures for the pharaoh's court, usin… See more

    Cardinal0, zero, "oh" (/oʊ/), nought, naught, nil
    OrdinalZeroth, noughth, 0th
    Latin prefixnulli-
    Binary0₂
    Symbols and representations

    Today, the numerical digit 0 is usually written as a circle or ellipse. Traditionally, many print typefaces made the capital letter O more rounded than the narrower, elliptical digit 0. Typewriters originally made no distinction i… See more

    Mathematics

    The concept of zero plays multiple roles in mathematics: as a digit, it is an important part of positional notation for representing numbers, while it also plays an important role as a number in its own right in many algebraic s… See more

    Physics

    The value zero plays a special role for many physical quantities. For some quantities, the zero level is naturally distinguished from all other levels, whereas for others it is more or less arbitrarily chosen. Fo… See more

    Computer science

    Modern computers store information in binary, that is, using an "alphabet" that contains only two symbols, usually chosen to be "0" and "1". Binary coding is convenient for digital electronics, where "0" and "1" ca… See more

    Other fields

    In comparative zoology and cognitive science, recognition that some animals display awareness of the concept of zero leads to the conclusion that the capability for numerical abstraction arose early in the evolution of … See more

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    Table of Contents
    Etymology
    History
    Quick Facts
    Symbols and representations
    Mathematics
    Physics
    Computer science
     
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