Difference between revisions of "Decimal"
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==Etymology== | ==Etymology== | ||
French décimal, from Medieval Latin decimalis of a tithe, from [[Latin]] decima tithe | French décimal, from Medieval Latin decimalis of a tithe, from [[Latin]] decima tithe | ||
| − | *Date: [ | + | *Date: [https://www.wikipedia.org/wiki/17th_Century 1608] |
==Definitions== | ==Definitions== | ||
*[[numbered]] or [[proceeding]] by tens: | *[[numbered]] or [[proceeding]] by tens: | ||
| Line 9: | Line 9: | ||
:b : subdivided into 10th or 100th [[units]] <decimal coinage> | :b : subdivided into 10th or 100th [[units]] <decimal coinage> | ||
==Description== | ==Description== | ||
| − | The '''decimal''' [[numeral]] [[system]] (also called base ten or occasionally denary) has [ | + | The '''decimal''' [[numeral]] [[system]] (also called base ten or occasionally denary) has [https://en.wikipedia.org/wiki/10_(number) ten] as its base. It is the numerical base most widely used by modern [[civilizations]]. |
| − | Decimal notation often refers to the base-10 [ | + | Decimal notation often refers to the base-10 [https://en.wikipedia.org/wiki/Positional_notation positional notation] such as the [https://en.wikipedia.org/wiki/Hindu-Arabic_numeral_system Hindu-Arabic numeral system], however it can also be used more generally to refer to non-positional systems such as [https://en.wikipedia.org/wiki/Roman_numerals Roman] or [https://en.wikipedia.org/wiki/Chinese_numerals Chinese numerals] which are also based on powers of ten. |
In some [[contexts]], especially [[mathematics]] [[education]], the term decimal can refer specifically to decimal [[fractions]]. In such cases, a single decimal [[fraction]] is called a "decimal", and non-fractional [[numbers]], even when written in base 10, are not considered "decimals". | In some [[contexts]], especially [[mathematics]] [[education]], the term decimal can refer specifically to decimal [[fractions]]. In such cases, a single decimal [[fraction]] is called a "decimal", and non-fractional [[numbers]], even when written in base 10, are not considered "decimals". | ||
==See also== | ==See also== | ||
| − | *[ | + | *[https://en.wikipedia.org/wiki/Dewey_decimal Dewey Decimal System] |
[[Category: Mathematics]] | [[Category: Mathematics]] | ||
Latest revision as of 23:47, 12 December 2020
Etymology
French décimal, from Medieval Latin decimalis of a tithe, from Latin decima tithe
- Date: 1608
Definitions
- numbered or proceeding by tens:
- a : based on the number 10; especially : expressed in or utilizing a decimal system especially with a decimal point
- b : subdivided into 10th or 100th units <decimal coinage>
Description
The decimal numeral system (also called base ten or occasionally denary) has ten as its base. It is the numerical base most widely used by modern civilizations.
Decimal notation often refers to the base-10 positional notation such as the Hindu-Arabic numeral system, however it can also be used more generally to refer to non-positional systems such as Roman or Chinese numerals which are also based on powers of ten.
In some contexts, especially mathematics education, the term decimal can refer specifically to decimal fractions. In such cases, a single decimal fraction is called a "decimal", and non-fractional numbers, even when written in base 10, are not considered "decimals".
