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  2. List of Dewey Decimal classes - Wikipedia

    en.wikipedia.org/wiki/List_of_Dewey_Decimal_classes

    The Dewey Decimal Classification (DDC) is structured around ten main classes covering the entire world of knowledge; each main class is further structured into ten hierarchical divisions, each having ten divisions of increasing specificity. [1]

  3. Dewey Decimal Classification - Wikipedia

    en.wikipedia.org/wiki/Dewey_Decimal_Classification

    A library bookshelf in Hong Kong classified using the New Classification Scheme for Chinese Libraries, an adaptation of the Dewey Classification scheme. The Dewey Decimal Classification (DDC), colloquially known as the Dewey Decimal System, is a proprietary library classification system which allows new books to be added to a library in their appropriate location based on subject.

  4. Decimalisation - Wikipedia

    en.wikipedia.org/wiki/Decimalisation

    Decimalisation or decimalization (see spelling differences) is the conversion of a system of currency or of weights and measures to units related by powers of 10.. Most countries have decimalised their currencies, converting them from non-decimal sub-units to a decimal system, with one basic currency unit and sub-units that are valued relative to the basic unit by a power of 10, most commonly ...

  5. Universal Decimal Classification - Wikipedia

    en.wikipedia.org/wiki/Universal_Decimal...

    A means of arranging the entries would be needed, and Otlet, having heard of the Dewey Decimal Classification, wrote to Melvil Dewey and obtained permission to translate it into French. The idea outgrew the plan of mere translation, and a number of radical innovations were made, adapting the purely enumerative classification (in which all the ...

  6. Decimal system - Wikipedia

    en.wikipedia.org/wiki/Decimal_system

    Decimal system may refer to: Decimal (base ten) number system, used in mathematics for writing numbers and performing arithmetic; Dewey Decimal System, a subject classification system used in libraries; Decimal currency system, where each unit of currency can be divided into 100 (or 10 or 1000) sub-units

  7. Category:Dewey Decimal Classification - Wikipedia

    en.wikipedia.org/wiki/Category:Dewey_Decimal...

    List of Dewey Decimal classes; C. Comparison of Dewey and Library of Congress subject classification This page was last edited on 1 April 2018, at 21:42 (UTC). Text ...

  8. Decimal representation - Wikipedia

    en.wikipedia.org/wiki/Decimal_representation

    Some real numbers have decimal expansions that eventually get into loops, endlessly repeating a sequence of one or more digits: 1 ⁄ 3 = 0.33333... 1 ⁄ 7 = 0.142857142857... 1318 ⁄ 185 = 7.1243243243... Every time this happens the number is still a rational number (i.e. can alternatively be represented as a ratio of an integer and a ...

  9. Melvil Dewey - Wikipedia

    en.wikipedia.org/wiki/Melvil_Dewey

    Melville Louis Kossuth "Melvil" Dewey (December 10, 1851 – December 26, 1931) was an American librarian and educator who invented the Dewey Decimal system of library classification. He was a founder of the Lake Placid Club , a chief librarian at Columbia University , and a founding member of the American Library Association .