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Decimal

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3142:, the division stops eventually, producing a decimal numeral, which may be prolongated into an infinite expansion by adding infinitely many zeros. If the rational number is not a decimal fraction, the division may continue indefinitely. However, as all successive remainders are less than the divisor, there are only a finite number of possible remainders, and after some place, the same sequence of digits must be repeated indefinitely in the quotient. That is, one has a 3306: 2303:. In practice, measurement results are often given with a certain number of digits after the decimal point, which indicate the error bounds. For example, although 0.080 and 0.08 denote the same number, the decimal numeral 0.080 suggests a measurement with an error less than 0.001, while the numeral 0.08 indicates an absolute error bounded by 0.01. In both cases, the true value of the measured quantity could be, for example, 0.0803 or 0.0796 (see also 3621: 3404: 6035: 268: 3493: 38: 3567: 3510: 3587: 3577: 3572: 2197: 4016:
hundred-like numbers by using intermediate units, such as stones and pounds, rather than a long count of pounds. Goodare gives examples of numbers like vii score, where one avoids the hundred by using extended scores. There is also a paper by W.H. Stevenson, on 'Long Hundred and its uses in England'.
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For most purposes, however, binary values are converted to or from the equivalent decimal values for presentation to or input from humans; computer programs express literals in decimal by default. (123.1, for example, is written as such in a computer program, even though many computer languages are
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The Egyptian hieratic numerals, the Greek alphabet numerals, the Hebrew alphabet numerals, the Roman numerals, the Chinese numerals and early Indian Brahmi numerals are all non-positional decimal systems, and required large numbers of symbols. For instance, Egyptian numerals used different symbols
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Decimal arithmetic is used in computers so that decimal fractional results of adding (or subtracting) values with a fixed length of their fractional part always are computed to this same length of precision. This is especially important for financial calculations, e.g., requiring in their results
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The existence of a non-decimal base in the earliest traces of the Germanic languages is attested by the presence of words and glosses meaning that the count is in decimal (cognates to "ten-count" or "tenty-wise"); such would be expected if normal counting is not decimal, and unusual if it were.
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details the use of the long hundred in Scotland in the Middle Ages, giving examples such as calculations where the carry implies i C (i.e. one hundred) as 120, etc. That the general population were not alarmed to encounter such numbers suggests common enough use. It is also possible to avoid
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Starting from the 2nd century BCE, some Chinese units for length were based on divisions into ten; by the 3rd century CE these metrological units were used to express decimal fractions of lengths, non-positionally. Calculations with decimal fractions of lengths were
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In summary, every real number that is not a decimal fraction has a unique infinite decimal expansion. Each decimal fraction has exactly two infinite decimal expansions, one containing only 0s after some place, which is obtained by the above definition of
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also uses a straightforward decimal system. All numbers between 10 and 20 are formed regularly (e.g. 11 is expressed as "tizenegy" literally "one on ten"), as with those between 20 and 100 (23 as "huszonhárom" = "three on twenty").
304:. Very large numbers were difficult to represent in these old numeral systems, and only the best mathematicians were able to multiply or divide large numbers. These difficulties were completely solved with the introduction of the 4262:
of a measurement. For example, "15.00 m" may indicate that the measurement error is less than one centimetre (0.01 m), while "15 m" may mean that the length is roughly fifteen metres and that the error may exceed
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Both computer hardware and software also use internal representations which are effectively decimal for storing decimal values and doing arithmetic. Often this arithmetic is done on data which are encoded using some variant of
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have imported the Chinese decimal system. Many other languages with a decimal system have special words for the numbers between 10 and 20, and decades. For example, in English 11 is "eleven" not "ten-one" or "one-teen".
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In numbers distinguished thus by a period in their midst, whatever is written after the period is a fraction, the denominator of which is unity with as many cyphers after it as there are figures after the
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introduced fractions to Islamic countries in the early 9th century CE, written with a numerator above and denominator below, without a horizontal bar. This form of fraction remained in use for centuries.
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of ancient civilizations use ten and its powers for representing numbers, possibly because there are ten fingers on two hands and people started counting by using their fingers. Examples are firstly the
2192:{\displaystyle 1=2^{0}\cdot 5^{0},2=2^{1}\cdot 5^{0},4=2^{2}\cdot 5^{0},5=2^{0}\cdot 5^{1},8=2^{3}\cdot 5^{0},10=2^{1}\cdot 5^{1},16=2^{4}\cdot 5^{0},20=2^{2}\cdot 5^{1},25=2^{0}\cdot 5^{2},\ldots } 2698: 5144: 1741: 3646:
introduced using the period (.) to separate the integer part of a decimal number from the fractional part in his book on constructing tables of logarithms, published posthumously in 1620.
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p. 293, gives number names that belong to this system. An expression cognate to 'one hundred and eighty' translates to 200, and the cognate to 'two hundred' translates to 240.
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The converse is also true: if, at some point in the decimal representation of a number, the same string of digits starts repeating indefinitely, the number is rational.
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Coppa, A.; et al. (2006). "Early Neolithic tradition of dentistry: Flint tips were surprisingly effective for drilling tooth enamel in a prehistoric population".
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is not zero. In some circumstances it may be useful to have one or more 0's on the left; this does not change the value represented by the decimal: for example,
5689: 943:). For a non-negative decimal numeral, it is the largest integer that is not greater than the decimal. The part from the decimal separator to the right is the 5846: 5737: 5114:: The invention of the decimal fractions and the application of the exponential calculus by Immanuel Bonfils of Tarascon (c. 1350), Isis 25 (1936), 16–45. 1839:, and therefore denote decimal fractions. An example of a fraction that cannot be represented by a decimal expression (with a finite number of digits) is 4693: 4631: 4004: 4000:" = 120, and a "long thousand" of 1200. The descriptions like "long" only appear after the "small hundred" of 100 appeared with the Christians. Gordon's 218:
Originally and in most uses, a decimal has only a finite number of digits after the decimal separator. However, the decimal system has been extended to
1888:, the decimal numbers are those whose denominator is a product of a power of 2 and a power of 5. Thus the smallest denominators of decimal numbers are 5811: 3339:, used decimal representation internally). For external use by computer specialists, this binary representation is sometimes presented in the related 1663: 5441: 5761: 1383: 3549:(1247) explicitly writes a decimal fraction representing a number rather than a measurement, using counting rods. The number 0.96644 is denoted 3415:
Many ancient cultures calculated with numerals based on ten, perhaps because two human hands have ten fingers. Standardized weights used in the
5717: 4927: 3545: 918:{\displaystyle a_{m}10^{m}+a_{m-1}10^{m-1}+\cdots +a_{0}10^{0}+{\frac {b_{1}}{10^{1}}}+{\frac {b_{2}}{10^{2}}}+\cdots +{\frac {b_{n}}{10^{n}}}} 5796: 5096: 4904: 4859: 4449: 4341: 5801: 5240: 3927: 967:
In brief, the contribution of each digit to the value of a number depends on its position in the numeral. That is, the decimal system is a
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Historians of Chinese science have speculated that the idea of decimal fractions may have been transmitted from China to the Middle East.
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integer multiples of the smallest currency unit for book keeping purposes. This is not possible in binary, because the negative powers of
613:—it may be removed; conversely, trailing zeros may be added after the decimal mark without changing the represented number; for example, 6069: 4588: 4560: 4347: 5712: 1223: 3485:
for 10, 20 to 90, 100, 200 to 900, 1000, 2000, 3000, 4000, to 10,000. The world's earliest positional decimal system was the Chinese
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Mazaudon, Martine (2002). "Les principes de construction du nombre dans les langues tibéto-birmanes". In François, Jacques (ed.).
964:). In normal writing, this is generally avoided, because of the risk of confusion between the decimal mark and other punctuation. 234:). In this context, the usual decimals, with a finite number of non-zero digits after the decimal separator, are sometimes called 6064: 5892: 4679: 1014: 305: 108: 5836: 5791: 5776: 5124: 4012: 3920: 3426:) were based on the ratios: 1/20, 1/10, 1/5, 1/2, 1, 2, 5, 10, 20, 50, 100, 200, and 500, while their standardized ruler – the 5414: 6059: 5826: 5727: 4381: 3392: 2211:. Nevertheless, they allow approximating every real number with any desired accuracy, e.g., the decimal 3.14159 approximates 1450: 5621: 5561: 5354:
The Exchequer in the twelfth century : the Ford lectures delivered in the University of Oxford in Michaelmas term, 1911
5182: 5871: 5816: 5766: 5752: 5742: 1656: 1238: 5035:. Vol. III, "Mathematics and the Sciences of the Heavens and the Earth". Cambridge University Press. pp. 82–90. 4656: 130:), refers generally to the notation of a number in the decimal numeral system. Decimals may sometimes be identified by a 6038: 5959: 5876: 5861: 5786: 5757: 5732: 5675: 4947: 4491: 2646: 1576: 1586: 5851: 5821: 5771: 4517: 1403: 208: 5422:. Empirical Approaches to Language Typology. Vol. 45. Berlin: Mouton de Gruyter (published 2010). Archived from 1702: 5475:
Australian Aborigines: The Languages and Customs of Several Tribes of Aborigines in the Western District of Victoria
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Some of the Germanic languages appear to show traces of an ancient blending of the decimal with the vigesimal system
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Some psychologists suggest irregularities of the English names of numerals may hinder children's counting ability.
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have no finite binary fractional representation; and is generally impossible for multiplication (or division). See
1463: 6010: 6001: 4291: 4197: 4047: 4024: 3992:-8) systems because the speakers count using the spaces between their fingers rather than the fingers themselves. 3612:
used decimal fractions around 1350 but did not develop any notation to represent them. The Persian mathematician
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number words up to 32 written down by a Spanish priest ca. 1819. "Chumashan Numerals" by Madison S. Beeler, in
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in central Europe (2300-1600 BC) used standardised weights and a decimal system in trade. The number system of
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Hammarström, Harald (17 May 2007). "Rarities in Numeral Systems". In Wohlgemuth, Jan; Cysouw, Michael (eds.).
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The world's earliest decimal multiplication table was made from bamboo slips, dating from 305 BCE, during the
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using a set of ten symbols emerged in India. Several Indian languages show a straightforward decimal system.
4701: 4296: 2286: 1639: 1423: 1027: 586:, that is, if the first sequence contains at least two digits, it is generally assumed that the first digit 5456: 2762: 5978: 4259: 4212: 4192: 4177: 3862: 3533: 3360: 2949: 2316: 1885: 1688: 1330: 1246: 231: 227: 168: 3359:, especially in database implementations, but there are other decimal representations in use (including 3328: 3317: 1441: 413:
either a (finite) sequence of digits (such as "2017"), where the entire sequence represents an integer:
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is an infinite decimal that, after some place, repeats indefinitely the same sequence of digits (e.g.,
5148:. Translated by Macdonald, William Rae. Edinburgh: Blackwood & Sons – via Internet Archive. 4893:
Krause, Harald; Kutscher, Sabrina (2017). "Spangenbarrenhort Oberding: Zusammenfassung und Ausblick".
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of two integers, if and only if it is a repeating decimal or has a finite number of non-zero digits.
191: 5163: 4923: 5260:. "Ethnomathematics: A Multicultural View of Mathematical Ideas". The College Mathematics Journal. 4228: 4043: 4020: 3882: 3789: 3781: 3734: 3659: 3446: 2616: 2304: 1618: 1483: 1434: 1253: 1185: 1040: 1001: 406: 212: 158:". Zero-digits after a decimal separator serve the purpose of signifying the precision of a value. 2299:
digits after the decimal mark, as soon as the absolute measurement error is bounded from above by
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Bisht, R. S. (1982), "Excavations at Banawali: 1974–77", in Possehl, Gregory L. (ed.), Harappan
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counting system, in which the names for numbers were structured according to multiples of 4 and
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real numbers. By increasing the number of digits after the decimal separator, one can make the
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systems. So did some small communities in India and Nepal, as indicated by their languages.
3730: 3613: 3609: 3462: 3454: 2586:{\displaystyle \left\vert \left_{n}-\left_{n-1}\right\vert =d_{n}\cdot 10^{-n}<10^{-n+1}} 1516: 1410: 1170: 1158: 1103: 1093: 1060: 1035: 301: 65: 4444:. Cambridge, Massachusetts London, England: The Belknap Press of Harvard University Press. 3604:
Positional decimal fractions appear for the first time in a book by the Arab mathematician
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of a decimal numeral is the integer written to the left of the decimal separator (see also
4705: 4683: 4543: 4039: 4008: 3758: 3742: 3135: 1684: 1628: 1598: 1541: 1511: 1496: 1263: 1231: 1203: 1180: 1163: 1022: 945: 625: 343: 293: 285: 252: 196: 5603: 3636:("the art of tenths") was first published in Dutch in 1585 and translated into French as 1608: 5637: 5536: 5473: 5210:"The typology of Pame number systems and the limits of Mesoamerica as a linguistic area" 5087:
Berggren, J. Lennart (2007). "Mathematics in Medieval Islam". In Katz, Victor J. (ed.).
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denote the (finite) decimal expansion of the greatest number that is not greater than
267: 6053: 5933: 5902: 5653: 5257: 5111: 4676: 4238: 4128: 4069: 3958: 3951: 3855: 3814: 3746: 3131: 1429: 1325: 1258: 1198: 1133: 1075: 1055: 601:. Similarly, if the final digit on the right of the decimal mark is zero—that is, if 335: 5236: 4854:
Graham Flegg: Numbers: their history and meaning, Courier Dover Publications, 2002,
3004:
is the decimal fraction obtained by replacing the last digit that is not a 9, i.e.:
5423: 5062: 5009: 4992: 4807: 4187: 4077: 3997: 3627: 3597: 3566: 3519: 3486: 3095:, and the other containing only 9s after some place, which is obtained by defining 1581: 1506: 931: 339: 146:
may also refer specifically to the digits after the decimal separator, such as in "
5622:"The Work of Glendon Lean on the Counting Systems of Papua New Guinea and Oceania" 5310:
Voyles, Joseph (October 1987), "The cardinal numerals in pre-and proto-Germanic",
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have numbers between 10 and 20 expressed in a regular pattern of addition to 10.
5986: 5970: 5907: 5194: 4567:(1 (reprint) ed.). Malabar, Florida: Robert E. Krieger Publishing Company. 4028: 3954: 3643: 3540: 3529: 3344: 2322: 2290: 2282: 2220: 2208: 1692: 1551: 1416: 1375: 1365: 223: 6018: 4652: 4218: 4062: 3977: 3973: 3820: 3632: 3616:
used, and claimed to have discovered, decimal fractions in the 15th century.
3586: 3581: 3576: 3571: 3470: 3434:, in evidence since around 3000 BCE, used a purely decimal system, as did the 1360: 1118: 940: 347: 312:. This system has been extended to represent some non-integer numbers, called 4483: 3056:, may be converted to its equivalent infinite decimal expansion by replacing 5926: 5921: 5371: 5228: 5089:
The Mathematics of Egypt, Mesopotamia, China, India, and Islam: A Sourcebook
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as small as one wants, when one has a method for computing the new digits.
111:. The way of denoting numbers in the decimal system is often referred to as 4799: 3761:
have an almost straightforward decimal system, in which 11 is expressed as
37: 3509: 3492: 4166: 4051: 3478: 3450: 3435: 3364: 3324: 3080: 3028: 2640: 475:
or a decimal mark separating two sequences of digits (such as "20.70828")
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Decimal vs. Duodecimal: An interaction between two systems of numeration
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Jean-Claude Martzloff, A History of Chinese Mathematics, Springer 1997
5012:, "The Development of Hindu–Arabic and Traditional Chinese Arithmetic", 952:
When the integral part of a numeral is zero, it may occur, typically in
949:, which equals the difference between the numeral and its integer part. 5645: 5265: 5029:(1959). "19.2 Decimals, Metrology, and the Handling of Large Numbers". 4730:(4th ed.), The Free Press (Macmillan Publishing Co.), p. 12, 4121: 4099: 4058: 4035: 3336: 2216: 1340: 309: 96: 5667: 4542:"Fingers or Fists? (The Choice of Decimal or Binary Representation)", 194:. Decimal fractions also result from the addition of an integer and a 5279:
McClean, R. J. (July 1958), "Observations on the Germanic numerals",
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A straightforward decimal rank system with a word for each order (10
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also used powers of ten, including an intermediate base of 5, as did
1874:, whose numerator is the integer obtained by removing the separator. 1345: 100: 5337:
Stevenson, W.H. (1890). "The Long Hundred and its uses in England".
5065:. "A Chinese Genesis, Rewriting the history of our numeral system". 4894: 4791: 2293:, the result of a measurement is well-represented by a decimal with 3626:
A forerunner of modern European decimal notation was introduced by
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Diagram of the world's earliest known multiplica­tion table (
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The numbers that may be represented in the decimal system are the
36: 4698: 4333: 3481:
hieroglyphs (since 15th century BCE) were also strictly decimal.
5494:. 2nd Meeting of the AFLANG, October 1998, Tokyo. Archived from 1683:, especially in contexts involving explicit fractions) are the 271:
Ten digits on two hands, the possible origin of decimal counting
5671: 727:{\displaystyle a_{m}a_{m-1}\ldots a_{0}.b_{1}b_{2}\ldots b_{n}} 566:{\displaystyle a_{m}a_{m-1}\ldots a_{0}.b_{1}b_{2}\ldots b_{n}} 3966: 3851: 2207:
Decimal numerals do not allow an exact representation for all
80: 74: 4410:
indicates that the '144' sequence repeats indefinitely, i.e.
3473:(c. 287–212 BCE) invented a decimal positional system in his 5416:
Rethinking Universals: How rarities affect linguistic theory
1870:(a point or comma) represents the fraction with denominator 398:" in many countries (mostly English-speaking), and a comma " 83: 3996:
Where this counting system is known, it is based on the "
3173:
012... (with the group 012345679 indefinitely repeating).
2215:, being less than 10 off; so decimals are widely used in 387: 383: 379: 375: 371: 367: 363: 359: 355: 351: 4258:
Sometimes, the extra zeros are used for indicating the
3331:
internally (although many early computers, such as the
4824:, New Delhi: Oxford and IBH Publishing Co., pp. 113–24 3965:
system (perhaps based on using all twenty fingers and
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Some cultures do, or did, use other bases of numbers.
3608:
written in the 10th century. The Jewish mathematician
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The Construction of the Wonderful Canon of Logarithms
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allows computing the infinite decimal expansion of a
2476: 1897: 1705: 956:, that the integer part is not written (for example, 743: 648: 487: 421: 77: 5129:
A History of Algebra. From Khwarizmi to Emmy Noether
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tends to infinity. According to the definition of a
71: 5952: 5885: 5705: 5408: 5406: 4952:
Zahlwort und Ziffer. Eine Kulturgeschichte der Zahl
2693:{\textstyle \;x=\lim _{n\rightarrow \infty }_{n}\;} 68: 5442:"Facts and fallacies of aboriginal number systems" 5183:"English words may hinder math skills development" 4592: 4284: 3630:in the 16th century. Stevin's influential booklet 3383: 3281:or, dividing both numerator and denominator by 6, 2996: 2803: 2692: 2585: 2191: 1735: 917: 726: 565: 463: 4918: 4916: 4550:, Vol. 2 #12, pp. 3–11, ACM Press, December 1959. 2281:Numbers are very often obtained as the result of 334:For writing numbers, the decimal system uses ten 4973:From One to Zero. A Universal History of Numbers 4873:From One to Zero. A Universal History of Numbers 4835:From One to Zero. A Universal History of Numbers 2658: 3705:, and 89,345 is expressed as 8 (ten thousands) 3365:IEEE 754 Standard for Floating-Point Arithmetic 1877:It follows that a number is a decimal fraction 1736:{\displaystyle 0.8,14.89,0.00079,1.618,3.14159} 5440:Harris, John (1982). Hargrave, Susanne (ed.). 4677:Decimal Floating-Point: Algorism for Computers 4624:Decimal Floating-Point: Algorism for Computers 3496:The world's earliest positional decimal system 103:. It is the extension to non-integer numbers ( 5683: 5312:The Journal of English and Germanic Philology 4983:, pp. 218f. (The Hittite hieroglyphic system) 4716:, pp. 104–11, IEEE Comp. Soc., June 2003 3928: 3724: 3718: 3712: 3706: 3692: 3686: 3680: 3674: 3553: 3327:hardware and software systems commonly use a 3027:, and replacing all subsequent 9s by 0s (see 1699:of ten. For example, the decimal expressions 1657: 8: 4954:, Vandenhoeck und Ruprecht, 3rd. ed., 1979, 4098:, also known as Kakoli, is reported to have 5091:. Princeton University Press. p. 530. 5082: 5080: 3079:and replacing all subsequent 0s by 9s (see 230:of digits after the decimal separator (see 5690: 5676: 5668: 5187:American Psychological Association Monitor 4694:16th IEEE Symposium on Computer Arithmetic 4632:16th IEEE Symposium on Computer Arithmetic 4318:Yong, Lam Lay; Se, Ang Tian (April 2004). 3935: 3921: 3785: 3585: 3580: 3575: 3570: 3565: 3560: 3221:       3191:       2953: 2850:. This expansion is unique if neither all 2766: 2689: 2650: 1664: 1650: 1007: 978: 200:; the resulting sum sometimes is called a 3522:, as described in the 3rd–5th century CE 3376: 3351:unable to encode that number precisely.) 2988: 2977: 2967: 2951: 2795: 2784: 2774: 2764: 2683: 2661: 2648: 2568: 2552: 2539: 2515: 2494: 2475: 2177: 2164: 2145: 2132: 2113: 2100: 2081: 2068: 2049: 2036: 2017: 2004: 1985: 1972: 1953: 1940: 1921: 1908: 1896: 1704: 907: 897: 891: 874: 864: 858: 847: 837: 831: 822: 812: 787: 771: 758: 748: 742: 718: 705: 695: 682: 663: 653: 647: 557: 544: 534: 521: 502: 492: 486: 455: 436: 426: 420: 4995:et al. The Fleeting Footsteps pp. 137–39 4822:Civilisation: A Contemporary Perspective 3520:performed using positional counting rods 2252:digits after the decimal mark such that 1881:it has a finite decimal representation. 464:{\displaystyle a_{m}a_{m-1}\ldots a_{0}} 4276: 4251: 3881: 3843: 3800: 990: 41:Place value of number in decimal system 5626:Mathematics Education Research Journal 5005: 5003: 5001: 4599:(1st ed.). Binghamton, New York: 3654:A method of expressing every possible 3546:Mathematical Treatise in Nine Sections 2804:{\textstyle \;(d_{n})_{n=1}^{\infty }} 2226:More precisely, for every real number 314: 162: 95:) is the standard system for denoting 5566:Papua New Guinea Journal of Education 5392:, edited by Michael P. Closs (1986), 5067:Archive for History of Exact Sciences 4845:, pp. 200–13 (Egyptian Numerals) 4372:Weisstein, Eric W. (March 10, 2022). 3139: 2997:{\textstyle \;(_{n})_{n=1}^{\infty }} 7: 5589:"Kaugel Valley systems of reckoning" 5587:Bowers, Nancy; Lepi, Pundia (1975). 5525:. Leuven: Peeters. pp. 91–119. 4435: 4433: 4367: 4365: 4305:participating institution membership 3430:– was divided into ten equal parts. 2372:. It is straightforward to see that 251:). An infinite decimal represents a 4899:. Museum Erding. pp. 238–243. 4753:(in French), Paris: Payot, p. 113, 4642:, pp. 104–11, IEEE Comp. Soc., 2003 4384:from the original on March 21, 2022 3697:), and in which 11 is expressed as 3528:. The 5th century CE mathematician 2353:digits after the decimal mark. Let 2203:Approximation using decimal numbers 5293:10.1111/j.1468-0483.1958.tb00018.x 4350:from the original on April 1, 2023 3363:such as in newer revisions of the 2989: 2796: 2668: 25: 5596:Journal of the Polynesian Society 5032:Science and Civilisation in China 5016:, 1996 p. 38, Kurt Vogel notation 4124:number system with base-4 cycles. 3513:counting rod decimal fraction 1/7 3453:script (c. 1400–1200 BCE) of the 3034:Any such decimal fraction, i.e.: 2884:greater than some natural number 2285:. As measurements are subject to 6034: 6033: 5965:Earth's location in the Universe 5893:Back-of-the-envelope calculation 5246:from the original on 2006-07-12. 4728:Number / The Language of Science 3619: 628:, a minus sign is placed before 409:, a decimal numeral consists of 64: 27:Number in base-10 numeral system 5898:Best-selling electronic devices 5449:Work Papers of SIL-AAB Series B 5356:. Clark, NJ: Lawbook Exchange. 4930:from the original on 2019-07-21 4659:from the original on 2009-04-29 4525:from the original on 2013-12-11 4494:from the original on 2020-03-18 3117:digits after the decimal mark. 3103:as the greatest number that is 2609:, or gets arbitrarily small as 1860:More generally, a decimal with 1857:, 3 not being a power of 10. 4883:, pp. 213–18 (Cretan numerals) 3393:Arbitrary-precision arithmetic 3138:. If the rational number is a 2974: 2964: 2957: 2954: 2781: 2767: 2680: 2673: 2665: 207:Decimals are commonly used to 1: 5562:"Counting and Number in Huli" 5384:There is a surviving list of 5352:Poole, Reginald Lane (2006). 3439: 3420: 3310: 2380:may be obtained by appending 5960:Astronomical system of units 3980:and the Pamean languages in 3737:with a few irregularities. 3505:History of decimal fractions 2753:Conversely, for any integer 350:"−". The decimal digits are 246:5.123144144144144... = 5.123 5602:(3): 309–24. Archived from 5390:Native American Mathematics 5208:Avelino, Heriberto (2006). 4518:Encyclopedia of Mathematics 4464:In some countries, such as 2946:, the limit of the sequence 2230:and every positive integer 1687:that may be expressed as a 306:Hindu–Arabic numeral system 109:Hindu–Arabic numeral system 6086: 6070:Positional numeral systems 5488:Matsushita, Shuji (1998). 5168:Ancient Indian mathematics 5131:. Berlin: Springer-Verlag. 4896:Spangenbarrenhort Oberding 4653:"Decimal Arithmetic – FAQ" 4038:number systems, including 3779: 3124: 2842:infinite decimal expansion 2811:the (infinite) expression 2759:and any sequence of digits 2742:infinite decimal expansion 2314: 2311:Infinite decimal expansion 1384:Non-standard radices/bases 134:(usually "." or "," as in 29: 6029: 6011:The Scale of the Universe 4749:Sergent, Bernard (1997), 4548:Communications of the ACM 4292:Oxford English Dictionary 4198:Decimal section numbering 4002:Introduction to Old Norse 3725: 3719: 3713: 3707: 3693: 3687: 3681: 3675: 3554: 3500:Lower row horizontal form 3417:Indus Valley Civilisation 2364:denote the last digit of 2234:, there are two decimals 969:positional numeral system 57:positional numeral system 5560:Cheetham, Brian (1978). 5455:: 153–81. Archived from 5341:. December 1889: 313–22. 4726:Dantzig, Tobias (1954), 3753:Incan languages such as 3469:. Notably, the polymath 3395:for exact calculations. 1743:represent the fractions 150:is the approximation of 32:Decimal (disambiguation) 6065:Fractions (mathematics) 5572:: 16–35. Archived from 5478:(1881), p. xcviii. 5281:German Life and Letters 5229:10.1515/LINGTY.2006.002 4975:, Penguin Books, 1988, 4875:, Penguin Books, 1988, 4837:, Penguin Books, 1988, 4472:are used for the digits 4440:Lockhart, Paul (2017). 4297:Oxford University Press 4110:means 24 × 2 = 48, and 4088:means 15 × 2 = 30, and 3606:Abu'l-Hasan al-Uqlidisi 3498:Upper row vertical form 3477:which was based on 10. 2861:are equal to 9 nor all 2287:measurement uncertainty 1886:fully reduced fractions 1640:List of numeral systems 5979:To the Moon and Beyond 5847:Specific heat capacity 5142:Napier, John (1889) . 4468:-speaking ones, other 4213:Densely packed decimal 4193:Decimal representation 4178:Decimal classification 4120:is reported to have a 3514: 3501: 3412: 3385: 3361:decimal floating point 3320: 2998: 2878:large enough (for all 2805: 2694: 2597:which is either 0, if 2587: 2450:and the difference of 2317:Decimal representation 2193: 1737: 919: 734:represents the number 728: 567: 465: 402:" in other countries. 324:decimal numeral system 272: 232:decimal representation 42: 6060:Elementary arithmetic 5997:(1968 and 1977 films) 5339:Archaeological Review 5125:B. L. van der Waerden 4601:John Wiley & Sons 4488:mathworld.wolfram.com 3957:cultures such as the 3802:Information-theoretic 3532:calculated a 7-digit 3512: 3495: 3406: 3386: 3329:binary representation 3318:Warring States period 3308: 3259:    3244:    3206:    2999: 2806: 2695: 2588: 2194: 1738: 1015:Hindu–Arabic numerals 920: 729: 599:3.14 = 03.14 = 003.14 568: 466: 270: 222:for representing any 40: 4263:10 centimetres. 4172:Binary-coded decimal 4135:is reported to have 4114:means 24 × 24 = 576. 4092:means 15 × 15 = 225. 4076:is reported to have 3443: 1800–1450 BCE 3432:Egyptian hieroglyphs 3424: 3300–1300 BCE 3375: 3357:binary-coded decimal 2950: 2763: 2647: 2643:. This is written as 2474: 1895: 1703: 1537:Prehistoric counting 1320:Common radices/bases 1002:Place-value notation 741: 646: 485: 419: 236:terminating decimals 213:approximation errors 192:non-negative integer 126:or, less correctly, 30:For other uses, see 5699:Orders of magnitude 5638:2001MEdRJ..13...47O 5620:Owens, Kay (2001), 5217:Linguistic Typology 5193:(4). Archived from 5181:Azar, Beth (1999). 4784:2006Natur.440..755C 4595:Decimal Computation 4565:Decimal Computation 4482:Weisstein, Eric W. 4404:vinculum (overline) 4295:(Online ed.). 4229:Scientific notation 4034:Many languages use 4021:Chumashan languages 4019:Many or all of the 3883:Quantum information 3782:Positional notation 3660:Dravidian languages 3301:Decimal computation 2993: 2872:are equal to 0 for 2800: 2740:which is called an 2400:. This way one has 2305:significant figures 2223:and everyday life. 1484:Sign-value notation 624:For representing a 407:non-negative number 405:For representing a 184:is an integer, and 6005:(1996 documentary) 5934:Metric (SI) prefix 5646:10.1007/BF03217098 5429:on 19 August 2007. 5386:Ventureño language 4704:2010-08-19 at the 4682:2003-11-16 at the 4628:Cowlishaw, Mike F. 4513:"Decimal Fraction" 4321:Fleeting Footsteps 4147:means 6 × 2 = 12, 4023:originally used a 4007:2016-04-15 at the 3767:two-ten with three 3667:Hungarian language 3515: 3502: 3428:Mohenjo-daro ruler 3413: 3384:{\displaystyle 10} 3381: 3321: 3246:4152.000000000... 3208:4156.156156156... 2994: 2973: 2801: 2780: 2690: 2672: 2583: 2189: 1733: 1679:(sometimes called 1147:East Asian systems 915: 724: 619:5.2 = 5.20 = 5.200 563: 461: 322:, for forming the 273: 43: 18:Decimal arithmetic 6047: 6046: 5944:Microscopic scale 5939:Macroscopic scale 5164:"Indian numerals" 5098:978-0-691-11485-9 4962:, pp. 150–53 4906:978-3-9817606-5-1 4860:978-0-486-42165-0 4451:978-0-674-97223-0 4378:Wolfram MathWorld 4343:978-981-238-696-0 4303:(Subscription or 4203:Decimal separator 3945: 3944: 3650:Natural languages 3534:approximation of 3279: 3278: 3144:repeating decimal 3127:Repeating decimal 3111:, having exactly 2844:of a real number 2657: 2349:that has exactly 1866:digits after the 1677:Decimal fractions 1674: 1673: 1473: 1472: 975:Decimal fractions 913: 880: 853: 615:15 = 15.0 = 15.00 392:decimal separator 315:decimal fractions 308:for representing 282:Egyptian numerals 241:repeating decimal 228:infinite sequence 220:infinite decimals 202:fractional number 164:decimal fractions 132:decimal separator 122:(also often just 105:decimal fractions 52:(also called the 16:(Redirected from 6077: 6037: 6036: 5718:Angular momentum 5692: 5685: 5678: 5669: 5662: 5661: 5656:, archived from 5617: 5611: 5610: 5608: 5593: 5584: 5578: 5577: 5557: 5551: 5550: 5548: 5547: 5541: 5535:. Archived from 5524: 5513: 5507: 5506: 5504: 5503: 5485: 5479: 5470: 5464: 5463: 5461: 5446: 5437: 5431: 5430: 5428: 5421: 5410: 5401: 5382: 5376: 5375: 5349: 5343: 5342: 5334: 5328: 5326: 5307: 5301: 5299: 5276: 5270: 5269: 5254: 5248: 5247: 5245: 5214: 5205: 5199: 5198: 5178: 5172: 5171: 5160: 5154: 5153: 5139: 5133: 5132: 5121: 5115: 5109: 5103: 5102: 5084: 5075: 5074: 5059: 5053: 5043: 5037: 5036: 5023: 5017: 5007: 4996: 4990: 4984: 4969: 4963: 4945: 4939: 4938: 4936: 4935: 4920: 4911: 4910: 4890: 4884: 4869: 4863: 4852: 4846: 4831: 4825: 4818: 4812: 4811: 4778:(7085): 755–56. 4767: 4761: 4751:Genèse de l'Inde 4747: 4741: 4740: 4723: 4717: 4674: 4668: 4667: 4665: 4664: 4649: 4643: 4621: 4615: 4614: 4598: 4585: 4579: 4578: 4557: 4551: 4540: 4534: 4533: 4531: 4530: 4509: 4503: 4502: 4500: 4499: 4479: 4473: 4462: 4456: 4455: 4437: 4428: 4426: 4424: 4421: 4418: 4415: 4409: 4400: 4394: 4393: 4391: 4389: 4369: 4360: 4359: 4357: 4355: 4326:World Scientific 4315: 4309: 4308: 4300: 4288: 4281: 4264: 4256: 4183:Decimal computer 4155:means 36×2 = 72. 4133:Papua New Guinea 4074:Papua New Guinea 4048:Kuurn Kopan Noot 4036:quinary (base-5) 3937: 3930: 3923: 3786: 3728: 3727: 3722: 3721: 3716: 3715: 3710: 3709: 3696: 3695: 3690: 3689: 3684: 3683: 3678: 3677: 3623: 3614:Jamshid al-Kashi 3610:Immanuel Bonfils 3589: 3584: 3579: 3574: 3569: 3564: 3557: 3556: 3537: 3463:classical Greece 3444: 3441: 3425: 3422: 3411:period in China. 3390: 3388: 3387: 3382: 3315: 3312: 3296: 3294: 3293: 3290: 3287: 3275: 3273: 3272: 3269: 3266: 3260: 3245: 3222: 3207: 3193:0.4156156156... 3192: 3183:For example, if 3180: 3179: 3172: 3168: 3164: 3162: 3161: 3158: 3155: 3140:decimal fraction 3121:Rational numbers 3115: 3110: 3102: 3094: 3078: 3066: 3055: 3045: 3026: 3014: 3003: 3001: 3000: 2995: 2992: 2987: 2972: 2971: 2945: 2911: 2901: 2887: 2882: 2876: 2871: 2860: 2848: 2839: 2810: 2808: 2807: 2802: 2799: 2794: 2779: 2778: 2758: 2748: 2735: 2699: 2697: 2696: 2691: 2688: 2687: 2671: 2637: 2632: 2625:is the limit of 2623: 2613: 2608: 2592: 2590: 2589: 2584: 2582: 2581: 2560: 2559: 2544: 2543: 2531: 2527: 2526: 2525: 2514: 2499: 2498: 2493: 2466: 2458: 2445: 2399: 2391:to the right of 2390: 2379: 2371: 2363: 2352: 2347: 2342: 2334: 2327: 2302: 2298: 2277: 2265: 2250: 2245: 2239: 2233: 2229: 2214: 2198: 2196: 2195: 2190: 2182: 2181: 2169: 2168: 2150: 2149: 2137: 2136: 2118: 2117: 2105: 2104: 2086: 2085: 2073: 2072: 2054: 2053: 2041: 2040: 2022: 2021: 2009: 2008: 1990: 1989: 1977: 1976: 1958: 1957: 1945: 1944: 1926: 1925: 1913: 1912: 1873: 1865: 1856: 1855: 1853: 1852: 1849: 1846: 1838: 1837: 1835: 1834: 1831: 1828: 1824: 1817: 1816: 1814: 1813: 1810: 1807: 1803: 1796: 1795: 1793: 1792: 1789: 1786: 1778: 1777: 1775: 1774: 1771: 1768: 1760: 1759: 1757: 1756: 1753: 1750: 1742: 1740: 1739: 1734: 1685:rational numbers 1666: 1659: 1652: 1455: 1439: 1421: 1411:balanced ternary 1408: 1395: 1008: 979: 963: 959: 924: 922: 921: 916: 914: 912: 911: 902: 901: 892: 881: 879: 878: 869: 868: 859: 854: 852: 851: 842: 841: 832: 827: 826: 817: 816: 798: 797: 782: 781: 763: 762: 753: 752: 733: 731: 730: 725: 723: 722: 710: 709: 700: 699: 687: 686: 674: 673: 658: 657: 638: 620: 616: 612: 600: 596: 585: 572: 570: 569: 564: 562: 561: 549: 548: 539: 538: 526: 525: 513: 512: 497: 496: 470: 468: 467: 462: 460: 459: 447: 446: 431: 430: 401: 397: 344:negative numbers 330:Decimal notation 302:Chinese numerals 250: 249: 189: 183: 177: 153: 149: 141: 137: 113:decimal notation 99:and non-integer 90: 89: 86: 85: 82: 79: 76: 73: 70: 21: 6085: 6084: 6080: 6079: 6078: 6076: 6075: 6074: 6050: 6049: 6048: 6043: 6025: 5948: 5881: 5797:Magnetic moment 5701: 5696: 5666: 5665: 5619: 5618: 5614: 5606: 5591: 5586: 5585: 5581: 5559: 5558: 5554: 5545: 5543: 5539: 5533: 5522: 5515: 5514: 5510: 5501: 5499: 5487: 5486: 5482: 5471: 5467: 5459: 5444: 5439: 5438: 5434: 5426: 5419: 5412: 5411: 5404: 5383: 5379: 5364: 5351: 5350: 5346: 5336: 5335: 5331: 5309: 5308: 5304: 5278: 5277: 5273: 5256: 5255: 5251: 5243: 5212: 5207: 5206: 5202: 5180: 5179: 5175: 5162: 5161: 5157: 5141: 5140: 5136: 5123: 5122: 5118: 5110: 5106: 5099: 5086: 5085: 5078: 5061: 5060: 5056: 5044: 5040: 5025: 5024: 5020: 5014:Chinese Science 5008: 4999: 4991: 4987: 4971:Georges Ifrah: 4970: 4966: 4948:Menninger, Karl 4946: 4942: 4933: 4931: 4924:"Greek numbers" 4922: 4921: 4914: 4907: 4892: 4891: 4887: 4871:Georges Ifrah: 4870: 4866: 4853: 4849: 4833:Georges Ifrah: 4832: 4828: 4819: 4815: 4792:10.1038/440755a 4769: 4768: 4764: 4748: 4744: 4738: 4725: 4724: 4720: 4706:Wayback Machine 4684:Wayback Machine 4675: 4671: 4662: 4660: 4651: 4650: 4646: 4622: 4618: 4611: 4589:Schmid, Hermann 4587: 4586: 4582: 4575: 4561:Schmid, Hermann 4559: 4558: 4554: 4544:Werner Buchholz 4541: 4537: 4528: 4526: 4511: 4510: 4506: 4497: 4495: 4481: 4480: 4476: 4463: 4459: 4452: 4439: 4438: 4431: 4422: 4419: 4416: 4413: 4411: 4407: 4401: 4397: 4387: 4385: 4374:"Decimal Point" 4371: 4370: 4363: 4353: 4351: 4344: 4317: 4316: 4312: 4302: 4283: 4282: 4278: 4273: 4268: 4267: 4257: 4253: 4248: 4243: 4162: 4009:Wayback Machine 3941: 3793: 3784: 3778: 3652: 3624: 3535: 3507: 3499: 3497: 3459:Únětice culture 3442: 3423: 3401: 3373: 3372: 3313: 3303: 3291: 3288: 3285: 3284: 3282: 3270: 3267: 3264: 3263: 3261: 3258: 3243: 3223:4.156156156... 3220: 3205: 3190: 3170: 3166: 3159: 3156: 3153: 3152: 3150: 3146:. For example, 3136:rational number 3129: 3123: 3113: 3108: 3101: 3096: 3093: 3088: 3076: 3068: 3065: 3057: 3047: 3043: 3035: 3024: 3016: 3013: 3005: 2963: 2948: 2947: 2944: 2935: 2929: 2922: 2918: 2913: 2912:equal to 9 and 2903: 2900: 2892: 2885: 2880: 2874: 2870: 2862: 2859: 2851: 2846: 2837: 2828: 2822: 2815: 2812: 2770: 2761: 2760: 2757: 2754: 2746: 2733: 2724: 2718: 2711: 2704: 2679: 2645: 2644: 2635: 2631: 2626: 2621: 2611: 2606: 2598: 2564: 2548: 2535: 2504: 2503: 2483: 2482: 2481: 2477: 2472: 2471: 2465: 2460: 2457: 2451: 2444: 2436: 2426: 2420: 2413: 2409: 2404: 2398: 2392: 2389: 2381: 2378: 2373: 2370: 2365: 2362: 2354: 2350: 2345: 2341: 2336: 2329: 2328:and an integer 2325: 2319: 2313: 2300: 2294: 2267: 2253: 2248: 2241: 2235: 2231: 2227: 2212: 2205: 2173: 2160: 2141: 2128: 2109: 2096: 2077: 2064: 2045: 2032: 2013: 2000: 1981: 1968: 1949: 1936: 1917: 1904: 1893: 1892: 1871: 1861: 1850: 1847: 1844: 1843: 1841: 1840: 1832: 1829: 1826: 1825: 1822: 1820: 1819: 1811: 1808: 1805: 1804: 1801: 1799: 1798: 1790: 1787: 1784: 1783: 1781: 1780: 1772: 1769: 1766: 1765: 1763: 1762: 1754: 1751: 1748: 1747: 1745: 1744: 1701: 1700: 1681:decimal numbers 1670: 1634: 1633: 1556: 1542:Proto-cuneiform 1487: 1486: 1475: 1474: 1469: 1468: 1453: 1437: 1419: 1406: 1393: 1380: 1316: 1315: 1303: 1302: 1283: 1243: 1228: 1219: 1218: 1209: 1208: 1190: 1149: 1148: 1139: 1138: 1090: 1032: 1018: 1017: 1005: 1004: 992:Numeral systems 977: 961: 957: 946:fractional part 903: 893: 870: 860: 843: 833: 818: 808: 783: 767: 754: 744: 739: 738: 714: 701: 691: 678: 659: 649: 644: 643: 637: 629: 626:negative number 618: 614: 610: 602: 598: 595: 587: 580: 553: 540: 530: 517: 498: 488: 483: 482: 451: 432: 422: 417: 416: 399: 395: 332: 320:decimal numbers 294:Hebrew numerals 286:Brahmi numerals 277:numeral systems 265: 253:rational number 247: 245: 197:fractional part 185: 179: 172: 151: 147: 139: 135: 120:decimal numeral 67: 63: 35: 28: 23: 22: 15: 12: 11: 5: 6083: 6081: 6073: 6072: 6067: 6062: 6052: 6051: 6045: 6044: 6042: 6041: 6030: 6027: 6026: 6024: 6023: 6015: 6007: 5999: 5991: 5983: 5975: 5967: 5962: 5956: 5954: 5950: 5949: 5947: 5946: 5941: 5936: 5931: 5930: 5929: 5924: 5919: 5905: 5900: 5895: 5889: 5887: 5883: 5882: 5880: 5879: 5874: 5869: 5864: 5859: 5854: 5849: 5844: 5842:Sound pressure 5839: 5834: 5829: 5824: 5819: 5814: 5809: 5804: 5802:Magnetic field 5799: 5794: 5789: 5784: 5779: 5774: 5769: 5764: 5762:Energy density 5755: 5750: 5745: 5740: 5735: 5730: 5725: 5720: 5715: 5709: 5707: 5703: 5702: 5697: 5695: 5694: 5687: 5680: 5672: 5664: 5663: 5612: 5609:on 2011-06-04. 5579: 5576:on 2007-09-28. 5552: 5531: 5508: 5480: 5465: 5462:on 2007-08-31. 5432: 5402: 5377: 5362: 5344: 5329: 5302: 5271: 5249: 5200: 5197:on 2007-10-21. 5173: 5155: 5134: 5116: 5104: 5097: 5076: 5054: 5038: 5027:Joseph Needham 5018: 4997: 4985: 4964: 4940: 4912: 4905: 4885: 4864: 4847: 4826: 4813: 4762: 4742: 4736: 4718: 4669: 4644: 4630:, Proceedings 4616: 4609: 4580: 4573: 4552: 4535: 4504: 4474: 4457: 4450: 4429: 4395: 4361: 4342: 4310: 4275: 4274: 4272: 4269: 4266: 4265: 4250: 4249: 4247: 4244: 4242: 4241: 4236: 4234:Serial decimal 4231: 4226: 4221: 4216: 4210: 4208:Decimalisation 4205: 4200: 4195: 4190: 4185: 4180: 4175: 4169: 4163: 4161: 4158: 4157: 4156: 4151:means 36, and 4125: 4115: 4093: 4066: 4055: 4032: 4017: 3993: 3970: 3943: 3942: 3940: 3939: 3932: 3925: 3917: 3914: 3913: 3912: 3911: 3901: 3895: 3886: 3885: 3879: 3878: 3877: 3876: 3866: 3859: 3846: 3845: 3841: 3840: 3839: 3838: 3828: 3818: 3805: 3804: 3798: 3797: 3780:Main article: 3777: 3774: 3729:5 is found in 3656:natural number 3651: 3648: 3618: 3592: 3591: 3558: 3525:Sunzi Suanjing 3506: 3503: 3467:Roman numerals 3409:Warring States 3400: 3397: 3380: 3314: 305 BCE 3302: 3299: 3277: 3276: 3256: 3248: 3247: 3241: 3225: 3224: 3218: 3210: 3209: 3203: 3195: 3194: 3188: 3175: 3174: 3125:Main article: 3122: 3119: 3097: 3089: 3072: 3061: 3039: 3020: 3009: 2991: 2986: 2983: 2980: 2976: 2970: 2966: 2962: 2959: 2956: 2940: 2933: 2927: 2920: 2914: 2896: 2866: 2855: 2833: 2826: 2820: 2813: 2798: 2793: 2790: 2787: 2783: 2777: 2773: 2769: 2755: 2738: 2737: 2729: 2722: 2716: 2709: 2686: 2682: 2678: 2675: 2670: 2667: 2664: 2660: 2656: 2653: 2627: 2602: 2595: 2594: 2580: 2577: 2574: 2571: 2567: 2563: 2558: 2555: 2551: 2547: 2542: 2538: 2534: 2530: 2524: 2521: 2518: 2513: 2510: 2507: 2502: 2497: 2492: 2489: 2486: 2480: 2461: 2452: 2448: 2447: 2440: 2431: 2424: 2418: 2411: 2405: 2393: 2385: 2374: 2366: 2358: 2337: 2315:Main article: 2312: 2309: 2204: 2201: 2200: 2199: 2188: 2185: 2180: 2176: 2172: 2167: 2163: 2159: 2156: 2153: 2148: 2144: 2140: 2135: 2131: 2127: 2124: 2121: 2116: 2112: 2108: 2103: 2099: 2095: 2092: 2089: 2084: 2080: 2076: 2071: 2067: 2063: 2060: 2057: 2052: 2048: 2044: 2039: 2035: 2031: 2028: 2025: 2020: 2016: 2012: 2007: 2003: 1999: 1996: 1993: 1988: 1984: 1980: 1975: 1971: 1967: 1964: 1961: 1956: 1952: 1948: 1943: 1939: 1935: 1932: 1929: 1924: 1920: 1916: 1911: 1907: 1903: 1900: 1879:if and only if 1732: 1729: 1726: 1723: 1720: 1717: 1714: 1711: 1708: 1672: 1671: 1669: 1668: 1661: 1654: 1646: 1643: 1642: 1636: 1635: 1632: 1631: 1626: 1621: 1616: 1611: 1606: 1601: 1596: 1595: 1594: 1589: 1584: 1574: 1569: 1563: 1562: 1555: 1554: 1549: 1544: 1539: 1534: 1529: 1524: 1519: 1514: 1509: 1504: 1499: 1493: 1492: 1491:Non-alphabetic 1488: 1482: 1481: 1480: 1477: 1476: 1471: 1470: 1467: 1466: 1461: 1448: 1432: 1427: 1414: 1401: 1387: 1386: 1379: 1378: 1373: 1368: 1363: 1358: 1353: 1348: 1343: 1338: 1333: 1328: 1322: 1321: 1317: 1310: 1309: 1308: 1305: 1304: 1301: 1300: 1294: 1288: 1287: 1282: 1281: 1276: 1271: 1266: 1261: 1256: 1250: 1249: 1247:Post-classical 1242: 1241: 1235: 1234: 1227: 1226: 1220: 1216: 1215: 1214: 1211: 1210: 1207: 1206: 1201: 1195: 1194: 1189: 1188: 1183: 1178: 1173: 1168: 1167: 1166: 1155: 1154: 1150: 1146: 1145: 1144: 1141: 1140: 1137: 1136: 1131: 1126: 1121: 1116: 1111: 1106: 1101: 1096: 1089: 1088: 1083: 1078: 1073: 1068: 1063: 1058: 1053: 1048: 1043: 1038: 1031: 1030: 1028:Eastern Arabic 1025: 1023:Western Arabic 1019: 1013: 1012: 1011: 1006: 1000: 999: 998: 995: 994: 988: 987: 976: 973: 927: 926: 910: 906: 900: 896: 890: 887: 884: 877: 873: 867: 863: 857: 850: 846: 840: 836: 830: 825: 821: 815: 811: 807: 804: 801: 796: 793: 790: 786: 780: 777: 774: 770: 766: 761: 757: 751: 747: 721: 717: 713: 708: 704: 698: 694: 690: 685: 681: 677: 672: 669: 666: 662: 656: 652: 633: 606: 591: 577: 576: 575: 574: 560: 556: 552: 547: 543: 537: 533: 529: 524: 520: 516: 511: 508: 505: 501: 495: 491: 477: 476: 473: 472: 471: 458: 454: 450: 445: 442: 439: 435: 429: 425: 336:decimal digits 331: 328: 298:Roman numerals 290:Greek numerals 264: 261: 226:, by using an 128:decimal number 50:numeral system 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 6082: 6071: 6068: 6066: 6063: 6061: 6058: 6057: 6055: 6040: 6032: 6031: 6028: 6021: 6020: 6016: 6013: 6012: 6008: 6006: 6004: 6003:Cosmic Voyage 6000: 5998: 5996: 5995:Powers of Ten 5992: 5989: 5988: 5984: 5981: 5980: 5976: 5973: 5972: 5968: 5966: 5963: 5961: 5958: 5957: 5955: 5951: 5945: 5942: 5940: 5937: 5935: 5932: 5928: 5925: 5923: 5920: 5918: 5915: 5914: 5913: 5909: 5906: 5904: 5903:Fermi problem 5901: 5899: 5896: 5894: 5891: 5890: 5888: 5884: 5878: 5875: 5873: 5870: 5868: 5865: 5863: 5860: 5858: 5855: 5853: 5850: 5848: 5845: 5843: 5840: 5838: 5835: 5833: 5830: 5828: 5825: 5823: 5820: 5818: 5815: 5813: 5810: 5808: 5805: 5803: 5800: 5798: 5795: 5793: 5790: 5788: 5785: 5783: 5780: 5778: 5775: 5773: 5770: 5768: 5765: 5763: 5759: 5756: 5754: 5751: 5749: 5746: 5744: 5741: 5739: 5736: 5734: 5731: 5729: 5726: 5724: 5721: 5719: 5716: 5714: 5711: 5710: 5708: 5704: 5700: 5693: 5688: 5686: 5681: 5679: 5674: 5673: 5670: 5660:on 2015-09-26 5659: 5655: 5651: 5647: 5643: 5639: 5635: 5631: 5627: 5623: 5616: 5613: 5605: 5601: 5597: 5590: 5583: 5580: 5575: 5571: 5567: 5563: 5556: 5553: 5542:on 2016-03-28 5538: 5534: 5532:90-429-1295-2 5528: 5521: 5520: 5512: 5509: 5498:on 2008-10-05 5497: 5493: 5492: 5484: 5481: 5477: 5476: 5469: 5466: 5458: 5454: 5450: 5443: 5436: 5433: 5425: 5418: 5417: 5409: 5407: 5403: 5399: 5398:0-292-75531-7 5395: 5391: 5387: 5381: 5378: 5373: 5369: 5365: 5363:1-58477-658-7 5359: 5355: 5348: 5345: 5340: 5333: 5330: 5325: 5321: 5318:(4): 487–95, 5317: 5313: 5306: 5303: 5298: 5294: 5290: 5287:(4): 293–99, 5286: 5282: 5275: 5272: 5267: 5263: 5259: 5258:Marcia Ascher 5253: 5250: 5242: 5238: 5234: 5230: 5226: 5222: 5218: 5211: 5204: 5201: 5196: 5192: 5188: 5184: 5177: 5174: 5169: 5165: 5159: 5156: 5152: 5147: 5146: 5138: 5135: 5130: 5126: 5120: 5117: 5113: 5108: 5105: 5100: 5094: 5090: 5083: 5081: 5077: 5072: 5068: 5064: 5063:Lay Yong, Lam 5058: 5055: 5052: 5051:3-540-33782-2 5048: 5042: 5039: 5034: 5033: 5028: 5022: 5019: 5015: 5011: 5006: 5004: 5002: 4998: 4994: 4989: 4986: 4982: 4981:0-14-009919-0 4978: 4974: 4968: 4965: 4961: 4960:3-525-40725-4 4957: 4953: 4949: 4944: 4941: 4929: 4925: 4919: 4917: 4913: 4908: 4902: 4898: 4897: 4889: 4886: 4882: 4881:0-14-009919-0 4878: 4874: 4868: 4865: 4861: 4857: 4851: 4848: 4844: 4843:0-14-009919-0 4840: 4836: 4830: 4827: 4823: 4817: 4814: 4809: 4805: 4801: 4797: 4793: 4789: 4785: 4781: 4777: 4773: 4766: 4763: 4760: 4759:2-228-89116-9 4756: 4752: 4746: 4743: 4739: 4737:0-02-906990-4 4733: 4729: 4722: 4719: 4715: 4714:0-7695-1894-X 4711: 4707: 4703: 4700: 4699:ARITH 16 4696: 4695: 4689: 4685: 4681: 4678: 4673: 4670: 4658: 4654: 4648: 4645: 4641: 4640:0-7695-1894-X 4637: 4633: 4629: 4625: 4620: 4617: 4612: 4610:0-471-76180-X 4606: 4602: 4597: 4596: 4590: 4584: 4581: 4576: 4574:0-89874-318-4 4570: 4566: 4562: 4556: 4553: 4549: 4545: 4539: 4536: 4524: 4520: 4519: 4514: 4508: 4505: 4493: 4489: 4485: 4478: 4475: 4471: 4467: 4461: 4458: 4453: 4447: 4443: 4436: 4434: 4430: 4405: 4399: 4396: 4383: 4379: 4375: 4368: 4366: 4362: 4349: 4345: 4339: 4335: 4331: 4327: 4323: 4322: 4314: 4311: 4306: 4298: 4294: 4293: 4287: 4280: 4277: 4270: 4261: 4255: 4252: 4245: 4240: 4239:Metric prefix 4237: 4235: 4232: 4230: 4227: 4225: 4222: 4220: 4217: 4214: 4211: 4209: 4206: 4204: 4201: 4199: 4196: 4194: 4191: 4189: 4186: 4184: 4181: 4179: 4176: 4173: 4170: 4168: 4165: 4164: 4159: 4154: 4150: 4146: 4142: 4138: 4134: 4130: 4129:Ndom language 4126: 4123: 4119: 4116: 4113: 4112:tokapu tokapu 4109: 4105: 4101: 4097: 4094: 4091: 4087: 4083: 4079: 4075: 4071: 4070:Huli language 4067: 4064: 4060: 4056: 4053: 4049: 4045: 4041: 4037: 4033: 4030: 4026: 4022: 4018: 4014: 4010: 4006: 4003: 3999: 3994: 3991: 3987: 3983: 3979: 3975: 3971: 3968: 3964: 3960: 3956: 3953: 3952:Pre-Columbian 3950: 3949: 3948: 3938: 3933: 3931: 3926: 3924: 3919: 3918: 3916: 3915: 3910:-dimensional) 3909: 3905: 3902: 3899: 3896: 3893: 3890: 3889: 3888: 3887: 3884: 3880: 3874: 3870: 3867: 3864: 3860: 3857: 3853: 3850: 3849: 3848: 3847: 3842: 3836: 3832: 3829: 3826: 3822: 3819: 3816: 3812: 3809: 3808: 3807: 3806: 3803: 3799: 3796: 3791: 3788: 3787: 3783: 3775: 3773: 3770: 3768: 3764: 3760: 3756: 3751: 3748: 3744: 3740: 3736: 3732: 3711:9 (thousand) 3704: 3703:two-ten-three 3700: 3671: 3668: 3663: 3661: 3657: 3649: 3647: 3645: 3641: 3639: 3635: 3634: 3629: 3622: 3617: 3615: 3611: 3607: 3602: 3599: 3595: 3588: 3583: 3578: 3573: 3568: 3563: 3559: 3552: 3551: 3550: 3548: 3547: 3542: 3538: 3531: 3527: 3526: 3521: 3511: 3504: 3494: 3490: 3488: 3482: 3480: 3476: 3475:Sand Reckoner 3472: 3468: 3464: 3460: 3456: 3452: 3448: 3437: 3433: 3429: 3418: 3410: 3405: 3398: 3396: 3394: 3378: 3368: 3366: 3362: 3358: 3352: 3348: 3346: 3342: 3338: 3334: 3330: 3326: 3319: 3307: 3300: 3298: 3257: 3254: 3250: 3249: 3242: 3239: 3235: 3231: 3227: 3226: 3219: 3216: 3212: 3211: 3204: 3201: 3197: 3196: 3189: 3186: 3182: 3181: 3178: 3149: 3148: 3147: 3145: 3141: 3137: 3133: 3132:Long division 3128: 3120: 3118: 3116: 3106: 3100: 3092: 3084: 3082: 3075: 3071: 3064: 3060: 3054: 3050: 3042: 3038: 3032: 3030: 3023: 3019: 3012: 3008: 2984: 2981: 2978: 2968: 2960: 2943: 2939: 2932: 2926: 2917: 2910: 2906: 2899: 2895: 2889: 2883: 2877: 2869: 2865: 2858: 2854: 2849: 2843: 2836: 2832: 2825: 2819: 2791: 2788: 2785: 2775: 2771: 2751: 2749: 2743: 2732: 2728: 2721: 2715: 2707: 2703: 2702: 2701: 2684: 2676: 2662: 2654: 2651: 2642: 2638: 2630: 2624: 2618: 2614: 2605: 2601: 2578: 2575: 2572: 2569: 2565: 2561: 2556: 2553: 2549: 2545: 2540: 2536: 2532: 2528: 2522: 2519: 2516: 2511: 2508: 2505: 2500: 2495: 2490: 2487: 2484: 2478: 2470: 2469: 2468: 2464: 2455: 2443: 2439: 2434: 2430: 2423: 2417: 2408: 2403: 2402: 2401: 2396: 2388: 2384: 2377: 2369: 2361: 2357: 2348: 2340: 2332: 2324: 2318: 2310: 2308: 2306: 2297: 2292: 2289:with a known 2288: 2284: 2279: 2275: 2271: 2264: 2260: 2256: 2251: 2246:with at most 2244: 2238: 2224: 2222: 2218: 2210: 2202: 2186: 2183: 2178: 2174: 2170: 2165: 2161: 2157: 2154: 2151: 2146: 2142: 2138: 2133: 2129: 2125: 2122: 2119: 2114: 2110: 2106: 2101: 2097: 2093: 2090: 2087: 2082: 2078: 2074: 2069: 2065: 2061: 2058: 2055: 2050: 2046: 2042: 2037: 2033: 2029: 2026: 2023: 2018: 2014: 2010: 2005: 2001: 1997: 1994: 1991: 1986: 1982: 1978: 1973: 1969: 1965: 1962: 1959: 1954: 1950: 1946: 1941: 1937: 1933: 1930: 1927: 1922: 1918: 1914: 1909: 1905: 1901: 1898: 1891: 1890: 1889: 1887: 1884:Expressed as 1882: 1880: 1875: 1869: 1864: 1858: 1730: 1727: 1724: 1721: 1718: 1715: 1712: 1709: 1706: 1698: 1694: 1690: 1686: 1682: 1678: 1667: 1662: 1660: 1655: 1653: 1648: 1647: 1645: 1644: 1641: 1638: 1637: 1630: 1627: 1625: 1622: 1620: 1617: 1615: 1612: 1610: 1607: 1605: 1602: 1600: 1597: 1593: 1590: 1588: 1585: 1583: 1580: 1579: 1578: 1577:Alphasyllabic 1575: 1573: 1570: 1568: 1565: 1564: 1561: 1558: 1557: 1553: 1550: 1548: 1545: 1543: 1540: 1538: 1535: 1533: 1530: 1528: 1525: 1523: 1520: 1518: 1515: 1513: 1510: 1508: 1505: 1503: 1500: 1498: 1495: 1494: 1490: 1489: 1485: 1479: 1478: 1465: 1462: 1459: 1452: 1449: 1446: 1445: 1436: 1433: 1431: 1428: 1425: 1418: 1415: 1412: 1405: 1402: 1399: 1392: 1389: 1388: 1385: 1382: 1381: 1377: 1374: 1372: 1369: 1367: 1364: 1362: 1359: 1357: 1354: 1352: 1349: 1347: 1344: 1342: 1339: 1337: 1334: 1332: 1329: 1327: 1324: 1323: 1319: 1318: 1314: 1307: 1306: 1298: 1295: 1293: 1290: 1289: 1285: 1284: 1280: 1277: 1275: 1272: 1270: 1267: 1265: 1262: 1260: 1257: 1255: 1252: 1251: 1248: 1245: 1244: 1240: 1237: 1236: 1233: 1230: 1229: 1225: 1222: 1221: 1217:Other systems 1213: 1212: 1205: 1202: 1200: 1199:Counting rods 1197: 1196: 1192: 1191: 1187: 1184: 1182: 1179: 1177: 1174: 1172: 1169: 1165: 1162: 1161: 1160: 1157: 1156: 1152: 1151: 1143: 1142: 1135: 1132: 1130: 1127: 1125: 1122: 1120: 1117: 1115: 1112: 1110: 1107: 1105: 1102: 1100: 1097: 1095: 1092: 1091: 1087: 1084: 1082: 1079: 1077: 1074: 1072: 1069: 1067: 1064: 1062: 1059: 1057: 1054: 1052: 1049: 1047: 1044: 1042: 1039: 1037: 1034: 1033: 1029: 1026: 1024: 1021: 1020: 1016: 1010: 1009: 1003: 997: 996: 993: 989: 985: 981: 980: 974: 972: 970: 965: 960:, instead of 955: 950: 948: 947: 942: 938: 937:integral part 934: 933: 908: 904: 898: 894: 888: 885: 882: 875: 871: 865: 861: 855: 848: 844: 838: 834: 828: 823: 819: 813: 809: 805: 802: 799: 794: 791: 788: 784: 778: 775: 772: 768: 764: 759: 755: 749: 745: 737: 736: 735: 719: 715: 711: 706: 702: 696: 692: 688: 683: 679: 675: 670: 667: 664: 660: 654: 650: 640: 636: 632: 627: 622: 609: 605: 594: 590: 583: 558: 554: 550: 545: 541: 535: 531: 527: 522: 518: 514: 509: 506: 503: 499: 493: 489: 481: 480: 479: 478: 474: 456: 452: 448: 443: 440: 437: 433: 427: 423: 415: 414: 412: 411: 410: 408: 403: 393: 389: 385: 381: 377: 373: 369: 365: 361: 357: 353: 349: 345: 341: 337: 329: 327: 325: 321: 317: 316: 311: 307: 303: 299: 295: 291: 287: 283: 278: 269: 262: 260: 258: 254: 243: 242: 237: 233: 229: 225: 221: 216: 214: 210: 205: 203: 199: 198: 193: 188: 182: 175: 170: 166: 165: 159: 157: 145: 133: 129: 125: 121: 116: 114: 110: 106: 102: 98: 94: 88: 62: 58: 55: 51: 48: 39: 33: 19: 6017: 6009: 6002: 5994: 5985: 5977: 5969: 5916: 5908:Powers of 10 5760: / 5713:Acceleration 5658:the original 5632:(1): 47–71, 5629: 5625: 5615: 5604:the original 5599: 5595: 5582: 5574:the original 5569: 5565: 5555: 5544:. Retrieved 5537:the original 5519:La Pluralité 5518: 5511: 5500:. Retrieved 5496:the original 5490: 5483: 5474: 5472:Dawson, J. " 5468: 5457:the original 5452: 5448: 5435: 5424:the original 5415: 5389: 5380: 5353: 5347: 5338: 5332: 5315: 5311: 5305: 5296: 5284: 5280: 5274: 5252: 5223:(1): 41–60. 5220: 5216: 5203: 5195:the original 5190: 5186: 5176: 5167: 5158: 5149: 5143: 5137: 5128: 5119: 5107: 5088: 5070: 5066: 5057: 5041: 5031: 5021: 5013: 5010:Lam Lay Yong 4993:Lam Lay Yong 4988: 4972: 4967: 4951: 4943: 4932:. Retrieved 4895: 4888: 4872: 4867: 4862:, p. 50 4850: 4834: 4829: 4821: 4816: 4775: 4771: 4765: 4750: 4745: 4727: 4721: 4692:Proceedings 4691: 4672: 4661:. Retrieved 4647: 4623: 4619: 4594: 4583: 4564: 4555: 4547: 4538: 4527:. Retrieved 4516: 4507: 4496:. Retrieved 4487: 4477: 4460: 4441: 4398: 4386:. Retrieved 4377: 4352:. Retrieved 4334:10.1142/5425 4320: 4313: 4290: 4279: 4254: 4188:Decimal time 4152: 4148: 4144: 4140: 4111: 4107: 4103: 4089: 4085: 4081: 3998:long hundred 3976:language in 3955:Mesoamerican 3946: 3907: 3872: 3844:Data storage 3834: 3771: 3766: 3763:ten with one 3762: 3752: 3717:3 (hundred) 3702: 3698: 3672: 3664: 3653: 3642: 3637: 3631: 3628:Simon Stevin 3625: 3603: 3598:Al-Khwarizmi 3596: 3593: 3544: 3523: 3516: 3487:rod calculus 3483: 3427: 3414: 3369: 3353: 3349: 3323:Most modern 3322: 3280: 3252: 3237: 3236:, i.e. 9,990 3233: 3229: 3214: 3199: 3184: 3176: 3143: 3130: 3112: 3104: 3098: 3090: 3085: 3073: 3069: 3062: 3058: 3052: 3048: 3040: 3036: 3033: 3021: 3017: 3010: 3006: 2941: 2937: 2930: 2924: 2915: 2908: 2904: 2897: 2893: 2890: 2879: 2873: 2867: 2863: 2856: 2852: 2845: 2841: 2834: 2830: 2823: 2817: 2752: 2745: 2741: 2739: 2730: 2726: 2719: 2713: 2705: 2634: 2628: 2620: 2610: 2603: 2599: 2596: 2462: 2453: 2449: 2441: 2437: 2432: 2428: 2421: 2415: 2406: 2394: 2386: 2382: 2375: 2367: 2359: 2355: 2344: 2338: 2330: 2320: 2295: 2280: 2273: 2269: 2262: 2258: 2254: 2247: 2242: 2236: 2225: 2209:real numbers 2206: 1883: 1876: 1862: 1859: 1680: 1676: 1675: 1443: 1404:Signed-digit 1355: 1286:Contemporary 1153:Contemporary 966: 951: 944: 936: 932:integer part 930: 928: 642:The numeral 641: 634: 630: 623: 607: 603: 592: 588: 581: 578: 404: 394:is the dot " 340:decimal mark 333: 323: 319: 313: 274: 239: 235: 219: 217: 206: 201: 195: 186: 180: 173: 171:of the form 163: 160: 156:two decimals 155: 143: 127: 123: 119: 117: 112: 104: 92: 60: 53: 46: 44: 5990:(1968 film) 5987:Cosmic Zoom 5982:(1964 film) 5974:(1957 book) 5971:Cosmic View 5857:Temperature 5832:Probability 5782:Illuminance 4145:mer an thef 4139:numerals. 4108:tokapu talu 3795:information 3776:Other bases 3644:John Napier 3541:Qin Jiushao 3530:Zu Chongzhi 3345:hexadecimal 3316:) from the 3198:then 10,000 2467:amounts to 2323:real number 2291:upper bound 2283:measurement 2221:engineering 1693:denominator 1582:Akṣarapallī 1552:Tally marks 1451:Non-integer 342:, and, for 284:, then the 224:real number 209:approximate 167:. That is, 6054:Categories 6019:Cosmic Eye 5546:2014-09-12 5502:2011-05-29 4934:2019-07-21 4663:2008-08-15 4529:2013-06-18 4498:2020-08-22 4442:Arithmetic 4307:required.) 4271:References 4219:Duodecimal 4106:means 24, 4084:means 15, 4080:numbers. 4063:duodecimal 4044:Nunggubuyu 3978:California 3765:and 23 as 3735:Vietnamese 3701:and 23 as 3633:De Thiende 3471:Archimedes 3455:Mycenaeans 1619:Glagolitic 1592:Kaṭapayādi 1560:Alphabetic 1464:Asymmetric 1313:radix/base 1254:Cistercian 1239:Babylonian 1186:Vietnamese 1041:Devanagari 941:truncation 348:minus sign 5927:1000000th 5837:Radiation 5792:Luminance 5777:Frequency 5738:Computing 5654:161535519 5112:Gandz, S. 5073:: 101–08. 4690:, M. 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Index

Decimal arithmetic
Decimal (disambiguation)

numeral system
positional numeral system
/ˈdnəri/
integer
numbers
Hindu–Arabic numeral system
decimal separator
decimal fractions
fractions
non-negative integer
fractional part
approximate
approximation errors
real number
infinite sequence
decimal representation
repeating decimal
rational number
quotient

numeral systems
Egyptian numerals
Brahmi numerals
Greek numerals
Hebrew numerals
Roman numerals
Chinese numerals

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