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17 August, 07:38

Is - 1/17 a repeating decimal

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  1. 17 August, 07:44
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    A repeating decimal, also called a recurring decimal, is a number whose decimal representation eventually becomes periodic (i. e., the same sequence of digits repeats indefinitely). The repeating portion of a decimal expansion is conventionally denoted with a vinculum so, for example,

    The minimum number of digits that repeats in such a number is known as the decimal period.

    Repeating decimal notation was implemented in versions of the Wolfram Language prior to 6 as PeriodicForm[RealDigits[r]] after loading the add-on package NumberTheory'ContinuedFractions'.

    All rational numbers have either finite decimal expansions (i. e., are regular numbers; e. g.,) or repeating decimals (e. g.,). However, irrational numbers, such as neither terminate nor become periodic.

    Numbers such as 0.5 are sometimes regarded as repeating decimals since.
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