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  2. X mark - Wikipedia

    en.wikipedia.org/wiki/X_mark

    An X mark marking the spot of the wrecked Whydah Gally in Cape Cod. An X mark (also known as an ex mark or a cross mark or simply an X or ex or a cross) is used to indicate the concept of negation (for example "no, this has not been verified", "no, that is not the correct answer" or "no, I do not agree") as well as an indicator (for example, in election ballot papers or in maps as an x-marks ...

  3. List of logic symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_logic_symbols

    The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics. Additionally, the subsequent columns contains an informal explanation, a short example, the Unicode location, the name for use in HTML documents, [1] and the LaTeX symbol.

  4. X̂ - Wikipedia

    en.wikipedia.org/wiki/X̂

    X̂ is the Latin letter X with a circumflex. The letter is used in the modern orthography of the Aleut language [1] and in the current Alaska Native Language Center alphabet of the Haida language. [2] In both cases, it represents the sound . In mathematics, x̂ often refers to the unit vector in the +X direction.

  5. List of Latin-script letters - Wikipedia

    en.wikipedia.org/wiki/List_of_Latin-script_letters

    X with low right ring Teuthonista [4] ꭗ X with long left leg ꭘ X with long left leg and low right ring ꭙ X with long left leg with serif ꭙ̆: X with long left leg with serif and breve The reference does not cite this letter and diacritic combination. [citation needed] ʏ 𐞲 Small capital Y IPA /ʏ/

  6. Check mark - Wikipedia

    en.wikipedia.org/wiki/Check_mark

    The x mark is also sometimes used for this purpose (most notably on election ballot papers, e.g. in the United Kingdom), but otherwise usually indicates "no", incorrectness, or failure. One of the earliest usages of a check mark as an indication of completion is on ancient Babylonian tablets "where small indentations were sometimes made with a ...

  7. ∂ - Wikipedia

    en.wikipedia.org/wiki/%E2%88%82

    The symbol was introduced originally in 1770 by Nicolas de Condorcet, who used it for a partial differential, and adopted for the partial derivative by Adrien-Marie Legendre in 1786. [3] It represents a specialized cursive type of the letter d , just as the integral sign originates as a specialized type of a long s (first used in print by ...

  8. List of emoticons - Wikipedia

    en.wikipedia.org/wiki/List_of_emoticons

    A simple smiley. This is a list of emoticons or textual portrayals of a writer's moods or facial expressions in the form of icons.Originally, these icons consisted of ASCII art, and later, Shift JIS art and Unicode art.

  9. Miscellaneous Symbols - Wikipedia

    en.wikipedia.org/wiki/Miscellaneous_Symbols

    Miscellaneous Symbols is a Unicode block (U+2600–U+26FF) containing glyphs representing concepts from a variety of categories: astrological, astronomical, chess, dice, musical notation, political symbols, recycling, religious symbols, trigrams, warning signs, and weather, among others.