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  2. Pound sign - Wikipedia

    en.wikipedia.org/wiki/Pound_sign

    The £ grapheme in a selection of fonts. The pound sign ( £) is the symbol for the pound unit of sterling – the currency of the United Kingdom and its associated Crown Dependencies and British Overseas Territories and previously of Great Britain and of the Kingdom of England. The same symbol is used for other currencies called pound, such as ...

  3. Plus–minus sign - Wikipedia

    en.wikipedia.org/wiki/Plus–minus_sign

    Plus–minus sign. The plus–minus sign, ±, is a symbol with multiple meanings: In mathematics, it generally indicates a choice of exactly two possible values, one of which is obtained through addition and the other through subtraction. In statistics and experimental sciences, the sign commonly indicates the confidence interval or uncertainty ...

  4. Nadar (caste) - Wikipedia

    en.wikipedia.org/wiki/Nadar_(caste)

    Nadar Regions with significant populations Chennai, Kanyakumari, Kollam, Madurai, Thanjavur, Thiruvananthapuram, Thoothukudi, Tiruchendur, Tirunelveli, Virudhunagar Languages Tamil, Malayalam Religion Hinduism, Christianity, Ayyavazhi Related ethnic groups Tamil people Nadar (also referred to as Nadan, Shanar and Shanan) is a Tamil caste of India. Nadars are predominant in the districts of ...

  5. Degree symbol - Wikipedia

    en.wikipedia.org/wiki/Degree_symbol

    Degree symbol. The degree symbol or degree sign, °, is a glyph or symbol that is used, among other things, to represent degrees of arc (e.g. in geographic coordinate systems ), hours (in the medical field), degrees of temperature or alcohol proof. The symbol consists of a small superscript circle.

  6. Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Main_Page

    Wikipedia is written by volunteer editors and hosted by the Wikimedia Foundation, a non-profit organization that also hosts a range of other volunteer projects : Commons. Free media repository. MediaWiki. Wiki software development. Meta-Wiki. Wikimedia project coordination. Wikibooks. Free textbooks and manuals.

  7. Glossary of mathematical symbols - Wikipedia

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

    Glossary of mathematical symbols. A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various ...

  8. Pound sterling - Wikipedia

    en.wikipedia.org/wiki/Pound_sterling

    A pound = 20 shillings = 240 silver pennies (formerly) The pound sterling emerged after the adoption of the Carolingian monetary system in England c.800. Here is a summary of changes to its value in terms of silver or gold until 1816. [44] [45] Value of £1 sterling in grams and troy ounces.

  9. List of logic symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_logic_symbols

    The ⇒ symbol is often used in text to mean "result" or "conclusion", as in "We examined whether to sell the product ⇒ We will not sell it". Also, the → symbol is often used to denote "changed to", as in the sentence "The interest rate changed. March 20% → April 21%". See also. Philosophy portal; Józef Maria Bocheński