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  1. The double sovereign is a gold coin of the United Kingdom with a nominal value of two pounds sterling (£2). It features the reigning monarch on its obverse and, most often, Benedetto Pistrucci 's depiction of Saint George and the Dragon on the reverse (pictured). It was rarely issued in the first century and a half after its debut in 1820 ...

  2. For statistics and control theory, Kalman filtering, also known as linear quadratic estimation ( LQE ), is an algorithm that uses a series of measurements observed over time, including statistical noise and other inaccuracies, and produces estimates of unknown variables that tend to be more accurate than those based on a single measurement alone...

  3. en.wikipedia.org › wiki › AsbestosAsbestos - Wikipedia

    Asbestos (/ æ s ˈ b ɛ s t ə s, æ z-,-t ɒ s / ass-BES-təs, az-, - toss) is a naturally occurring fibrous silicate mineral.There are six types, all of which are composed of long and thin fibrous crystals, each fibre (particulate with length substantially greater than width) being composed of many microscopic "fibrils" that can be released into the atmosphere by abrasion and other processes.

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    Slashes may be found in early writing as a variant form of dashes, vertical strokes, etc. The present use of a slash distinguished from such other marks derives from the medieval European virgule (Latin: virgula, lit. "twig"), which was used as a period, scratch comma, and caesura mark. (The first sense was eventually lost to the low dot and the ot...

    Computing

    The slash, sometimes distinguished as "forward slash", is used in computingin a number of ways, primarily as a separator among levels in a given hierarchy, for example in the path of a filesystem.

    Currency

    The slash (as the "shilling mark" or "solidus") was an abbreviation for the shilling, a former coin of the United Kingdom and its former colonies. Before the decimalisation of currency in Britain, its currency abbreviations (collectively £sd) represented their Latin names, derived from a medieval French modification of the late Roman libra, solidus, and denarius. Thus, one penny less than two pounds was written £1 19s. 11d. During the period when English orthography included the long s, ſ, th...

    There are usually no spaces either before or after a slash. According to New Hart's Rules: The Oxford Style Guide, a slash is usually written without spacing on either side when it connects single words, letters or symbols. Exceptions are in representing the start of a new line when quoting verse, or a new paragraph when quoting prose. The Chicago ...

    As a very common character, the slash (as "slant") was originally encoded in ASCII with the decimal code 47 or 0x2F. The same value was used in Unicode, which calls it "solidus" and also adds some more characters: 1. U+002F / SOLIDUS 2. U+0337 ̷ COMBINING SHORT SOLIDUS OVERLAY (for strikethrough) 3. U+0338 ̸ COMBINING LONG SOLIDUS OVERLAY (for stri...

    The slash may also be read out as and, or, and/or, to, or cum in some compounds separated by a slash; over or out of in fractions, division, and numbering; and per or a(n)in derived units (as km/h) and prices (as $~/kg), where the division slash stands for "each".

  4. ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard [1] published by the International Organization for Standardization (ISO), to represent countries, dependent territories, and special areas of geographical interest.

  5. en.wikipedia.org › wiki › 00 - Wikipedia

    0 (zero) is a number representing an empty quantity. Adding 0 to any number leaves that number unchanged. In mathematical terminology, 0 is the additive identity of the integers, rational numbers, real numbers, and complex numbers, as well as other algebraic structures. Multiplying any number by 0 has the result 0, and consequently, division ...

  6. Wikipedia is a free online encyclopedia that anyone can edit, and millions already have . Wikipedia's purpose is to benefit readers by presenting information on all branches of knowledge. Hosted by the Wikimedia Foundation, it consists of freely editable content, whose articles also have numerous links to guide readers towards more information.