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2. De Thiende - Wikipedia

   en.wikipedia.org/wiki/De_Thiende

   The idea of extending the decimal place-value system to include fractions was discovered by several mathematicians. The most influential of these was Simon Stevin, a Flemish mathematician and engineer who popularized the system in a booklet called De Thiende ("The tenth"), first published in 1585. By extending place value to tenths, hundredths ...

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. Fraction - Wikipedia

   en.wikipedia.org/wiki/Fraction

   However, scientific measurements typically use the metric system, which is based on decimal fractions, and starting from the secondary school level, mathematics pedagogy treats every fraction uniformly as a rational number, the quotient ⁠ p / q ⁠ of integers, leaving behind the concepts of "improper fraction" and "mixed number". [20]

5. Metric system - Wikipedia

   en.wikipedia.org/wiki/Metric_system

   In the SI system and generally in older metric systems, multiples and fractions of a unit can be described via a prefix on a unit name that implies a decimal (base-10), multiplicative factor. The only exceptions are for the SI-accepted units of time (minute and hour) and angle (degree, arcminute, arcsecond) which, based on ancient convention ...

6. Fractional part - Wikipedia

   en.wikipedia.org/wiki/Fractional_part

   For a positive number written in a conventional positional numeral system (such as binary or decimal), its fractional part hence corresponds to the digits appearing after the radix point, such as the decimal point in English. The result is a real number in the half-open interval [0, 1).

7. 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]