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Online Search Tools. List of mathematical symbols. When reading the list, it is important to recognize that a mathematical concept is independent of the symbol chosen to represent it. For many of the symbols below, the symbol is usually synonymous with the corresponding concept (ultimately an arbitrary choice made as a result of the cumulative history of mathematics), but in some situations a different convention may be used.

For example, depending on context, the triple bar "≡" may represent congruence or a definition. Further, in mathematical logic, numerical equality is sometimes represented by "≡" instead of "=", with the latter representing equality of well-formed formulas. In short, convention dictates the meaning. Each symbol is shown both in HTML, whose display depends on the browser's access to an appropriate font installed on the particular device, and in TeX, as an image.

Guide[edit] This list is organized by symbol type and is intended to facilitate finding an unfamiliar symbol by its visual appearance. Basic symbols[edit] Abbreviations and acronyms dictionary: Find definitions for over. Online Etymology Dictionary. The Idiom Connection.

Universal Currency Converter. Library of Congress Home. Timeanddate.com. List of Latin abbreviations. Nearly all the abbreviations below have been adopted by Modern English. However, with some exceptions (for examples, versus, modus operandi), most of the Latin referent words and phrases are still foreign and unknown to English. In a few cases, English referents have replaced the original Latin ones (e.g., "rest in peace" for R.I.P. and "post script" for P.S.) Latin was once the universal academic language in Europe. From the 18th century authors started using their mother tongues to write books, papers or proceedings.

Even when Latin fell out of use, many Latin abbreviations continued to be used due to their precise simplicity and Latin's status as a learned language. List of common abbreviations[edit] All abbreviations are given with full stops, although these are omitted or included as a personal preference in most situations. Less common abbreviations and usages[edit] Words and abbreviations that have been in general use, but are currently used less often: See also[edit] References[edit] Wiktionary. Real Academia Española. Urban Dictionary, November 30: leverage. Google Libros.