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Inner semidirect product: if N and H are subgroups of a group G, such that N is a normal subgroup of G, then = and = mean that G is the semidirect product of N and H, that is, that every element of G can be uniquely decomposed as the product of an element of N and an element of H.
These tables show all styled forms of Latin and Greek letters, symbols and digits in the Unicode Standard, with the normal unstyled forms of these characters shown with a cyan background (the basic unstyled letters may be serif or sans-serif depending upon the font).
The letter m has three, the left, middle, and right stems. The central stroke of an s is known as the spine. [6] When the stroke is part of a lowercase [4] and rises above the height of an x (the x height), it is known as an ascender. [7] Letters with ascenders are b d f h k l. A stroke which drops below the baseline is a descender. [7]
Latin and Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities.
Three lines above, the letters have twice the height of those letters on the 6/6 (or 20/20 in the US) line. If this is the smallest line a person can read, the person's acuity is "6/12" ("20/40"), meaning that this person needs to approach to a distance of 6 metres (20 ft) to read letters that a person with normal acuity could read at 12 metres ...
A type of climbing on large boulders less than 20 feet (6.1 m) high with only crash pads and spotting for protection. [1] [2] bouldering mat Bouldering mat A thick foam pad used for protection when bouldering; also called a crash pad. [2] bounce test A technique in aid climbing where a new placement is tested by using the lead climber 's ...
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The prime symbol ′ is commonly used to represent feet (ft), and the double prime ″ is used to represent inches (in). [2] The triple prime ‴, as used in watchmaking, represents a ligne (1 ⁄ 12 of a "French" inch, or pouce, about 2.26 millimetres or 0.089 inches). [3] Primes are also used for angles.