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In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.
A bracket is either of two tall fore- or back-facing punctuation marks commonly used to isolate a segment of text or data from its surroundings. [3] They come in four main pairs of shapes, as given in the box to the right, which also gives their names, that vary between British and American English. [1] "
medium left curly bracket ornament; medium right curly bracket ornament; u+2774; u+2775; ps, open; pe, close; common left s-shaped bag delimiter;
To use one of these, press edit above, and copy the name of the menu you want to use (but without the curly brackets) and paste it into the search box to the left and press "Go". Then press edit again and select and copy the whole page (using ctrl-C). Then create a new page called User:USERNAME/Menu, and paste what you copied to there. Edit it ...
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)
See § Brackets for examples of use. Most symbols have two printed versions. They can be displayed as Unicode characters, or in LaTeX format. With the Unicode version, using search engines and copy-pasting are easier. On the other hand, the LaTeX rendering is often much better (more aesthetic), and is generally considered a standard in mathematics.
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The answer to both questions is essentially the same: The curly brackets indicate a template, and the purpose of templates, generally, is to add standard text to a page. Because templates are so important—you'll find them everywhere at Wikipedia—there's a separate section on them later in this chapter (see the section about templates ).