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Quotation marks [A] are punctuation marks used in pairs in various writing systems to identify direct speech, a quotation, or a phrase.The pair consists of an opening quotation mark and a closing quotation mark, which may or may not be the same glyph. [3]
The numbers may come as close as they like to 12, including 11.999 and so forth, but 12.0 is not included. In some European countries, the notation [5, 12[is also used. [45] [46] The endpoint adjoining the square bracket is known as closed, whereas the endpoint adjoining the parenthesis is known as open. [44]
The endpoint adjoining the square bracket is known as closed, while the endpoint adjoining the parenthesis is known as open. If both types of brackets are the same, the entire interval may be referred to as closed or open as appropriate.
The method for producing smart quotes may be based solely on the character preceding the mark. If it is a space or another of a set of hard-coded characters or if the mark begins a line, the mark will be rendered as an opening quote; if not, it will be rendered as a closing quote or apostrophe. This method can cause errors, especially for ...
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 ...
The following table lists many specialized symbols commonly used in modern mathematics, ordered by their introduction date. The table can also be ordered alphabetically by clicking on the relevant header title.
Circa 2010, some editors proposed using the Unicode symbol U+0192 ƒ LATIN SMALL LETTER F WITH HOOK (ƒ) as a replacement function symbol; however, this symbol should not be used, because the mathematical function symbol is nothing more or less than an ordinary italic f, and its appearance should be consistent with the font otherwise used ...
The Miscellaneous Mathematical Symbols-B block (U+2980–U+29FF) contains miscellaneous mathematical symbols, including brackets, angles, and circle symbols. Miscellaneous Mathematical Symbols-B [1] Official Unicode Consortium code chart (PDF)