0 (number): Difference between revisions
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imported>Julian Salazar (started an article on the number 'zero') |
imported>Joe Quick (subpages and minor expansion) |
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'''0''' ('''zero''') is a [[real number]] and is the [[integer]] between [[1 (number)|1]] and [[-1 (number)|-1]]. It is also the [[numerical digit]] which represents itself. As a number, it is used to signify a value of nothing, and as a digit, it is a placeholder for [[place value]] systems. | '''0''' ('''zero''') is a [[real number]] and is the [[integer]] between [[1 (number)|1]] and [[-1 (number)|-1]]. It is also the [[numerical digit]] which represents itself. As a number, it is used to signify a value of nothing, and as a digit, it is a placeholder for [[place value]] systems. | ||
== History == | == History == | ||
The number zero was invented twice - once in India and once in Mesoamerica. This invention is considered especially significant because it required a considerable cognitive leap to achieve and because it opened the door to a host of new applications for numbers. | |||
== Use in Mathematics == | == Use in Mathematics == | ||
== Use in Computer Science == | == Use in Computer Science == | ||
Revision as of 20:56, 19 December 2007
0 (zero) is a real number and is the integer between 1 and -1. It is also the numerical digit which represents itself. As a number, it is used to signify a value of nothing, and as a digit, it is a placeholder for place value systems.
History
The number zero was invented twice - once in India and once in Mesoamerica. This invention is considered especially significant because it required a considerable cognitive leap to achieve and because it opened the door to a host of new applications for numbers.