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HTML and XML provide ways to reference Unicode characters when the characters themselves either cannot or should not be used. A numeric character reference refers to a character by its Universal Character Set/Unicode code point, and a character entity reference refers to a character by a predefined name.
Miscellaneous Technical is a Unicode block ranging from U+2300 to U+23FF. It contains various common symbols which are related to and used in the various technical, programming language, and academic professions.
A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula.
The division sign (÷) is a mathematical symbol consisting of a short horizontal line with a dot above and another dot below, used in Anglophone countries to indicate the operation of division.
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.. It is currently fully allocated.
Bookshelf Symbol 7 is a typeface which was packaged with Microsoft Office 2003.It is a pi font encoding several less common variants of Roman letters (including a small subset of those used in the International Phonetic Alphabet), a few musical symbols and mathematical symbols, a few additional symbols (including torii), and a few rare or obscure kanji.
In word processing and text editing, the Tab key will move the insertion point to the next tab stop in a table, insert the ASCII tab character, or insert multiple space characters (depending on the program used).
The string "the dog ate the bone" was created using production rules that replaced non-terminal with terminal symbols. [1]In formal languages, terminal and nonterminal symbols are the lexical elements used in specifying the production rules constituting a formal grammar.