decimal - meaning and definition. What is decimal
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What (who) is decimal - definition

NUMERAL SYSTEM WITH TEN AS ITS BASE
Denary; Base 10; Base10; Decimal numberal system; Base-10; Decimal notation; Decimals; Base ten; Decimal square; Decimal value; Decimal fraction; Decimal numbers; Decimal numeral system; Decimal arithmetic; Decimal Chart; Decimal approximation of a real number; History decimal number; Decimal number system; Decimal fractions; Tens System; Decimal Places; Base 100; One tenth; DEC (calculator mode); Decimal number; Base-ten number system; Base ten number system; Base-10 number system; Base 10 number system; Denary number system; Denary number
  • The world's earliest positional decimal system<br /> Upper row vertical form<br /> Lower row horizontal form
  • 305 BCE}}) from the [[Warring States period]]
  • The world's earliest decimal multiplication table was made from bamboo slips, dating from 305 BCE, during the [[Warring States]] period in China.
  • counting rod decimal fraction 1/7
  • upright=1.2

decimal         
(decimals)
1.
A decimal system involves counting in units of ten.
...the decimal system of metric weights and measures...
ADJ: ADJ n
2.
A decimal is a fraction that is written in the form of a dot followed by one or more numbers which represent tenths, hundredths, and so on: for example .5, .51, .517.
...simple math concepts, such as decimals and fractions.
N-COUNT
Decimal         
·noun A number expressed in the scale of tens; specifically, and almost exclusively, used as synonymous with a decimal fraction.
II. Decimal ·adj Of or pertaining to decimals; numbered or proceeding by tens; having a tenfold increase or decrease, each unit being ten times the unit next smaller; as, decimal notation; a decimal coinage.
decimal         
¦ adjective relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.
¦ noun a fraction whose denominator is a power of ten and whose numerator is expressed by figures placed to the right of a decimal point.
?a system of decimal numerical notation.
Derivatives
decimally adverb
Origin
C17: from mod. L. decimalis (adjective), from L. decimus 'tenth'.

Wikipedia

Decimal

The decimal numeral system (also called the base-ten positional numeral system and denary or decanary) is the standard system for denoting integer and non-integer numbers. It is the extension to non-integer numbers of the Hindu–Arabic numeral system. The way of denoting numbers in the decimal system is often referred to as decimal notation.

A decimal numeral (also often just decimal or, less correctly, decimal number), refers generally to the notation of a number in the decimal numeral system. Decimals may sometimes be identified by a decimal separator (usually "." or "," as in 25.9703 or 3,1415). Decimal may also refer specifically to the digits after the decimal separator, such as in "3.14 is the approximation of π to two decimals". Zero-digits after a decimal separator serve the purpose of signifying the precision of a value.

The numbers that may be represented in the decimal system are the decimal fractions. That is, fractions of the form a/10n, where a is an integer, and n is a non-negative integer.

The decimal system has been extended to infinite decimals for representing any real number, by using an infinite sequence of digits after the decimal separator (see decimal representation). In this context, the decimal numerals with a finite number of non-zero digits after the decimal separator are sometimes called terminating decimals. A repeating decimal is an infinite decimal that, after some place, repeats indefinitely the same sequence of digits (e.g., 5.123144144144144... = 5.123144). An infinite decimal represents a rational number, the quotient of two integers, if and only if it is a repeating decimal or has a finite number of non-zero digits.

Examples of use of decimal
1. Akira Haraguchi, 5', recited the number to 83,431 decimal places.
2. They lost 2 acres 75 decimal land for the project.
3. He recited the ratio out to 42,1'5 decimal places in 1''5.
4. Each decimal place, in theory, takes you 10 times closer to the answer.
5. They were apparently designed by the same person who thought up the Dewey decimal system.