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Mathematical Alphanumeric Symbols is a Unicode block comprising styled forms of Latin and Greek letters and decimal digits that enable mathematicians to denote different notions with different letter styles. The letters in various fonts often have specific, fixed meanings in particular areas of mathematics.
The definition of a Latin-script letter for this list is a character encoded in the Unicode Standard that has a script property of 'Latin' and the general category of 'Letter'. An overview of the distribution of Latin-script letters in Unicode is given in Latin script in Unicode .
Letterlike Symbols is a Unicode block containing 80 characters which are constructed mainly from the glyphs of one or more letters. In addition to this block, Unicode includes full styled mathematical alphabets , although Unicode does not explicitly categorize these characters as being "letterlike."
Historically, upper-case letters were used for representing points in geometry, and lower-case letters were used for variables and constants. Letters are used for representing many other types of mathematical object. As the number of these types has increased, the Greek alphabet and some Hebrew letters have also come to be used
Unusually for a letter in the Latin script, only the lower-case ǰ is encoded as a pre-composed character in Unicode. The capital J̌ is the sequence J followed by U+030C COMBINING CARON. Rendering the latter form correctly requires the relevant OpenType Layout support in the font, which may not be present on all fonts and/or work in all systems.
The letter eth (Ð ð) was later devised as a modification of dee (D d), and finally yogh (Ȝ ȝ) was created by Norman scribes from the insular g in Old English and Irish, and used alongside their Carolingian g. The a-e ligature ash (Æ æ) was adopted as a letter in its own right, named after a futhorc rune æsc.
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The Ƶ character is similar to the vertical form of the Wolfsangel (German for "wolf trap") heraldic charge from medieval Germany and eastern France.. The Wolfsangel symbol was an early 15th-century symbol of Germanic liberty and freedom that also appears as a mason's mark and was also used as a German medieval forestry boundary marker. [1]