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  2. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    When the meaning depends on the syntax, a symbol may have different entries depending on the syntax. For summarizing the syntax in the entry name, the symbol {\displaystyle \Box } is used for representing the neighboring parts of a formula that contains the symbol.

  3. Bracket (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Bracket_(mathematics)

    Sometimes, for the clarity of reading, different kinds of brackets are used to express the same meaning of precedence in a single expression with deep nesting of sub-expressions. [1] Historically, other notations, such as the vinculum, were similarly used for grouping. In present-day use, these notations all have specific meanings.

  4. CTAN - Wikipedia

    en.wikipedia.org/wiki/CTAN

    CTAN was officially announced at the EuroTeX conference at Aston University, 1993. The WEB server itself is maintained by Gerd Neugebauer. The WEB server itself is maintained by Gerd Neugebauer. The English site has been stable since the beginning, but both the American and the German sites have moved thrice.

  5. List of computing and IT abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_computing_and_IT...

    XSD—XML Schema Definition; XSL—eXtensible Stylesheet Language; XSL-FO—eXtensible Stylesheet Language Formatting Objects; XSLT—eXtensible Stylesheet Language Transformations; XSS—Cross-Site Scripting; XTF—eXtensible Tag Framework; XTF—eXtended Triton Format; XUL—XML User Interface Language; XVGA—Extended Video Graphics Adapter

  6. Definitions of mathematics - Wikipedia

    en.wikipedia.org/wiki/Definitions_of_mathematics

    The preceding kinds of definitions, which had prevailed since Aristotle's time, [4] were abandoned in the 19th century as new branches of mathematics were developed, which bore no obvious relation to measurement or the physical world, such as group theory, projective geometry, [3] and non-Euclidean geometry.

  7. Norm (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Norm_(mathematics)

    In mathematics, a norm is a function from a real or complex vector space to the non-negative real numbers that behaves in certain ways like the distance from the origin: it commutes with scaling, obeys a form of the triangle inequality, and is zero only at the origin.

  8. Chess annotation symbols - Wikipedia

    en.wikipedia.org/wiki/Chess_annotation_symbols

    Meaning ! The only move that maintains the current evaluation of the position: If the position is theoretically drawn, this is the only move that does not lose; if the position is theoretically won, this is the only move that secures the win. An "!"

  9. Standard deviation - Wikipedia

    en.wikipedia.org/wiki/Standard_deviation

    Suppose that the entire population of interest is eight students in a particular class. For a finite set of numbers, the population standard deviation is found by taking the square root of the average of the squared deviations of the values subtracted from their average value.