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The California Job Case was a compartmentalized box for printing in the 19th century, sizes corresponding to the commonality of letters. The frequency of letters in text has been studied for use in cryptanalysis, and frequency analysis in particular, dating back to the Arab mathematician al-Kindi (c. AD 801–873 ), who formally developed the method (the ciphers breakable by this technique go ...
A duospaced font (also called a duospace font) is a fixed-width font whose letters and characters occupy either of two integer multiples of a specified, fixed horizontal space. Traditionally, this means either a single or double character width, [ 1 ] although the term has also been applied to fonts using fixed character widths with another ...
&name; where name is the case-sensitive name of the entity. The semicolon is required. Because numbers are harder for humans to remember than names, character entity references are most often written by humans, while numeric character references are most often produced by computer programs. [1]
Non-printing characters or formatting marks are characters for content designing in word processors, which are not displayed at printing. It is also possible to customize their display on the monitor. The most common non-printable characters in word processors are pilcrow, space, non-breaking space, tab character etc. [1] [2]
In writing and typography, a ligature occurs where two or more graphemes or letters are joined to form a single glyph.Examples are the characters æ and œ used in English and French, in which the letters a and e are joined for the first ligature and the letters o and e are joined for the second ligature.
A precomposed character (alternatively composite character or decomposable character) is a Unicode entity that can also be defined as a sequence of one or more other characters. A precomposed character may typically represent a letter with a diacritical mark , such as é (Latin small letter e with acute accent ).
In an era when Greek texts were typically written scripta continua, the enotikon served to show that a series of letters should be read as a single word rather than misunderstood as two separate words. (Its companion mark was the hypodiastole, which showed that a series of letters should be understood as two separate words. [2])
For example, the grapheme à requires two glyphs: the basic a and the grave accent `. In general, a diacritic is regarded as a glyph, [2] even if it is contiguous with the rest of the character like a cedilla in French, Catalan or Portuguese, the ogonek in several languages, or the stroke on a Polish "Ł". Although these marks originally had no ...