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  2. Henricus Grammateus - Wikipedia

    en.wikipedia.org/wiki/Henricus_Grammateus

    Henricus Grammateus (also known as Henricus Scriptor, Heinrich Schreyber or Heinrich Schreiber; 1495 – 1525 or 1526 [1]) was a German mathematician. He was born in Erfurt. In 1507 he started to study at the University of Vienna, where he subsequently taught. Christoph Rudolff was one of his students. From 1514 to 1517 he studied in Kraków ...

  3. Triple bar - Wikipedia

    en.wikipedia.org/wiki/Triple_bar

    Without proper rendering support, you may see question marks, boxes, or other symbols. The triple bar or tribar, ≡, is a symbol with multiple, context-dependent meanings indicating equivalence of two different things. Its main uses are in mathematics and logic. It has the appearance of an equals sign = with a third line.

  4. Talk:Plus–minus sign - Wikipedia

    en.wikipedia.org/wiki/Talk:Plus–minus_sign

    For transparency, consensus-building purposes, I wish to make editors aware that I have added the purple box, with "±" depicted, to the article ().If there are any qualms or enquiries regarding my change, please feel free to discuss with me on my talk page, or below (NB, you might wish to drop me a note of any discussion ongoing here, at my talk page).

  5. Table of mathematical symbols by introduction date - Wikipedia

    en.wikipedia.org/wiki/Table_of_mathematical...

    integral sign. : colon (for division ) 1684 (deriving from use of colon to denote fractions, dating back to 1633) ·. middle dot (for multiplication ) 1698 (perhaps deriving from a much earlier use of middle dot to separate juxtaposed numbers) ⁄. division slash (a.k.a. solidus )

  6. Minus (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Minus_(disambiguation)

    Minus refers to the minus sign, a mathematical symbol. Minus may also refer to: Minus (record label) (also "m_nus"), a Canadian record label; minus, a webcomic; Mínus, an Icelandic band; Minus, a 2008 album by Dukes of Windsor "Minus", a 1996 song by Beck from Odelay "Minus", a 2002 song by In Flames from Reroute to Remain

  7. Signed number representations - Wikipedia

    en.wikipedia.org/wiki/Signed_number_representations

    Signed number representations. In computing, signed number representations are required to encode negative numbers in binary number systems. In mathematics, negative numbers in any base are represented by prefixing them with a minus sign ("−"). However, in RAM or CPU registers, numbers are represented only as sequences of bits, without extra ...

  8. Polarity symbols - Wikipedia

    en.wikipedia.org/wiki/Polarity_symbols

    The commonly used symbol denoting the polarity of a device or adapter consists of a black dot with a line leading to the right and a broken circle (like the letter "C") surrounding the dot and with a line leading to the left. At the ends of the lines leading right and left are found a plus sign (+), meaning positive, also sometimes referred to ...

  9. Johannes Widmann - Wikipedia

    en.wikipedia.org/wiki/Johannes_Widmann

    Johannes Widmann (c. 1460 – after 1498) was a German mathematician. The + and - symbols first appeared in print in his book Mercantile Arithmetic or Behende und hüpsche Rechenung auff allen Kauffmanschafft published in Leipzig in 1489 in reference to surpluses and deficits in business problems. [1]