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. By providing uniformity over numerous mathematical articles and books, these conventions help to read mathematical formulas. These also may be used to differentiate between concepts that share a letter in a single problem.
A Unicode block is one of several contiguous ranges of numeric character codes of the Unicode character set that are defined by the Unicode Consortium for administrative and documentation purposes. Typically, proposals such as the addition of new glyphs are discussed and evaluated by considering the relevant block or blocks as a whole.
Miscellaneous Symbols is a Unicode block (U+2600–U+26FF) containing glyphs representing concepts from a variety of categories: astrological, astronomical, chess, dice, musical notation, political symbols, recycling, religious symbols, trigrams, warning signs, and weather, among others.
Znamenny Chant is a singing tradition used by some in the Russian Eastern Orthodox Church. Znamenny Chant is a unison, melismatic liturgical singing that has its own specific notation, called the stolp notation. The symbols used in the stolp notation are called kryuki or znamëna. Often the names of the signs are used to refer to the stolp notation. Znamenny melodies are part of a system, consisting of 'eight tones' ; the melodies are characterized by fluency and balance.
In computing, a Unicode symbol is a Unicode character which is not part of a script used to write a natural language, but is nonetheless available for use as part of a text.
Phonetic Extensions is a Unicode block containing phonetic characters used in the Uralic Phonetic Alphabet, Old Irish phonetic notation, the Oxford English dictionary and American dictionaries, and Americanist and Russianist phonetic notations. Its character set is continued in the following Unicode block, Phonetic Extensions Supplement.
Block Elements is a Unicode block containing square block symbols of various fill and shading. Used along with block elements are box-drawing characters, shade characters, and terminal graphic characters. These can be used for filling regions of the screen and portraying drop shadows. Its block name in Unicode 1.0 was Blocks.
Miscellaneous Mathematical Symbols-A is a Unicode block containing characters for mathematical, logical, and database notation.
Miscellaneous Mathematical Symbols-B is a Unicode block containing miscellaneous mathematical symbols, including brackets, angles, and circle symbols.
Mathematical Operators is a Unicode block containing characters for mathematical, logical, and set notation.
In the Unicode standard, a plane is a continuous group of 65,536 (216) code points. There are 17 planes, identified by the numbers 0 to 16, which corresponds with the possible values 00–1016 of the first two positions in six position hexadecimal format (U+hhhhhh). Plane 0 is the Basic Multilingual Plane (BMP), which contains most commonly used characters. The higher planes 1 through 16 are called "supplementary planes". The last code point in Unicode is the last code point in plane 16, U+10FFFF. As of Unicode version 15.0, five of the planes have assigned code points (characters), and seven are named.
Enclosed Alphanumerics is a Unicode block of typographical symbols of an alphanumeric within a circle, a bracket or other not-closed enclosure, or ending in a full stop.
Musical Symbols is a Unicode block containing characters for representing modern musical notation. Fonts that support it include Bravura, Euterpe, FreeSerif, Musica and Symbola. The Standard Music Font Layout (SMuFL), which is supported by the MusicXML format, expands on the Musical Symbols Unicode Block's 220 glyphs by using the Private Use Area in the Basic Multilingual Plane, permitting close to 2600 glyphs.
Byzantine Musical Symbols is a Unicode block containing characters for representing musical notation for Byzantine music.
Ancient Greek Musical Notation is a Unicode block containing symbols representing musical notations used in ancient Greece.
Sutton SignWriting is a Unicode block containing characters used in SignWriting, a system for writing sign languages that was developed by Valerie Sutton in 1974.
Chess Symbols is a Unicode block containing characters for fairy chess and related notations beyond the basic Western chess symbols in the Miscellaneous Symbols block, as well as symbols representing game pieces for xiangqi.
A number of Greek letters, variants, digits, and other symbols are supported by the Unicode character encoding standard.
