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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. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...
Typographical symbols and punctuation marks are marks and symbols used in typography with a variety of purposes such as to help with legibility and accessibility, or to identify special cases. This list gives those most commonly encountered with Latin script. For a far more comprehensive list of symbols and signs, see List of Unicode characters.
In elementary mathematics, the symbol represents the factorial operation. The expression n! means "the product of the integers from 1 to n". For example, 4! (read four factorial) is 4 × 3 × 2 × 1 = 24. (0! is defined as 1, [45] which is a neutral element in multiplication, not multiplied by anything.)
Another punctuation common in the Indian Subcontinent for writing monetary amounts is the use of /- or /= after the number. For example, Rs. 20/- or Rs. 20/= implies 20 whole rupees. Thai, Khmer, Lao and Burmese did not use punctuation until the adoption of punctuation from the West in the 20th century. Blank spaces are more frequent than full ...
But, this raised formatting is not standard. For example, Russian mathematical texts use the baseline format. [36] The ellipsis is not a formally defined mathematical symbol. Repeated summations or products may be more formally denoted using capital sigma and capital pi notation, respectively:
In marketing and advertising, asterisks or other symbols are used to refer readers discreetly to terms or conditions for a certain statement, the "small print". In English-language typography the asterisk is placed after all other punctuation marks (for example, commas, colons, or periods) except for the dash. [53] [54]
In non-computing use — for example in mathematics, physics and general typography — the broken bar is not an acceptable substitute for the vertical bar. In some dictionaries, the broken bar is used to mark stress that may be either primary or secondary: [¦ba] covers the pronunciations [ˈba] and [ˌba]. [17]
The symbol has a variety of uses in programming and mathematics. The name "caret" arose from its visual similarity to the original proofreader's caret , ‸ , a mark used in proofreading to indicate where a punctuation mark, word, or phrase should be inserted into a document.