Wikipedia

Draft:Outline of numbers

The following outline is provided as an overview of and topical guide to numbers:

A number is a mathematical object used to count, measure, and label. The most basic examples are the natural numbers 1, 2, 3, 4, and so forth. Individual numbers can be represented in language with number words or by dedicated symbols called numerals; for example, "five" is a number word and "5" is the corresponding numeral. As only a relatively small number of symbols can be memorized, basic numerals are commonly arranged in a numeral system, which is an organized way to represent any number. The most common numeral system is the Hindu–Arabic numeral system, which allows for the representation of any non-negative integer using a combination of ten fundamental numeric symbols, called digits. In addition to their use in counting and measuring, numerals are often used for labels (as with telephone numbers), for ordering (as with serial numbers), and for codes (as with ISBNs). In common usage, a numeral is not clearly distinguished from the number that it represents.

What type of things are numbers?

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Numbers can be described as all of the following:

  • Abstract concepts
    • Symbols
      • Fundamental elements of mathematics
        • Quantitative descriptors

Types of numbers

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Main article: List of types of numbers

Hypercomplex numbers

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Other types

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History of numbers

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History of numbers

General numbers concepts

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Numbers organizations

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Numbers publications

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Persons influential in numbers

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See also

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References

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