enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. John Napier - Wikipedia

    en.wikipedia.org/wiki/John_Napier

    He also invented the so-called "Napier's bones" and made common the use of the decimal point in arithmetic and mathematics. Napier's birthplace, Merchiston Tower in Edinburgh, is now part of the facilities of Edinburgh Napier University. There is a memorial to him at St Cuthbert's at the west side of Edinburgh. [2]

  3. 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.

  4. Simon Stevin - Wikipedia

    en.wikipedia.org/wiki/Simon_Stevin

    Muslim mathematicians were the first to utilize decimals instead of fractions on a large scale. Al-Kashi's book, Key to Arithmetic, was written at the beginning of the 15th century and was the stimulus for the systematic application of decimals to whole numbers and fractions thereof. [16] [17] But nobody established their daily use before ...

  5. Abu'l-Hasan al-Uqlidisi - Wikipedia

    en.wikipedia.org/wiki/Abu'l-Hasan_al-Uqlidisi

    Al-Uqlidisi uses decimal fractions as such, appreciates the importance of a decimal sign, and suggests a good one. Not al-Kashi (d. 1436/7) who treated decimal fractions in his "Miftah al-Hisab", but al-Uqlidisi, who lived five centuries earlier, is the first Muslim mathematician so far known to write about decimal fractions. [4]

  6. Decimal - Wikipedia

    en.wikipedia.org/wiki/Decimal

    In this context, the usual decimals, 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... = 5.123 144 ). [ 4 ]

  7. History of mathematical notation - Wikipedia

    en.wikipedia.org/wiki/History_of_mathematical...

    (In decimal arithmetic, only reciprocals of multiples of 2 and 5 have finite decimal expansions.) Also, unlike the Egyptians, Greeks, and Romans, the Babylonians had a true place-value system, where digits written in the left column represented larger values, much as in the decimal system. They lacked, however, an equivalent of the decimal ...

  8. John W. Nystrom - Wikipedia

    en.wikipedia.org/wiki/John_W._Nystrom

    In 1859, Nystrom proposed a hexadecimal (base 16) system of notation, arithmetic, and metrology called the Tonal system.In addition to new weights and measures, his proposal included a new calendar with sixteen months, a new system of coinage, and a hexadecimal clock with sixteen hours in a day.

  9. History of measurement - Wikipedia

    en.wikipedia.org/wiki/History_of_measurement

    Decimal numbers are an essential part of the metric system, with only one base unit and multiples created on the decimal base, the figures remain the same. This simplifies calculations. Although the Indians used decimal numbers for mathematical computations, it was Simon Stevin who in 1585 first advocated the use of decimal numbers for everyday ...