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The equals sign (British English) or equal sign (American English), also known as the equality sign, is the mathematical symbol =, which is used to indicate equality in some well-defined sense. [1] In an equation , it is placed between two expressions that have the same value, or for which one studies the conditions under which they have the ...
unstrict inequality signs (less-than or equals to sign and greater-than or equals to sign) 1670 (with the horizontal bar over the inequality sign, rather than below it) John Wallis: 1734 (with double horizontal bar below the inequality sign) Pierre Bouguer
A currency symbol or currency sign is a graphic symbol used to denote a currency unit. Usually it is defined by a monetary authority, such as the national central bank for the currency concerned. A symbol may be positioned in various ways, according to national convention: before, between or after the numeric amounts: €2.50 , 2,50€ and 2 50 .
It was common into the 18th century to use an abbreviation of the word equals as the symbol for equality; examples included æ and œ , from the Latin aequālis. [9] Diophantus's use of ἴσ , short for ἴσος (ísos 'equals'), in Arithmetica (c. 250 AD) is considered one of the first uses of an equals sign. [10]
The symbol € is based on the Greek letter epsilon (Є), with the first letter in the word "Europe" and with 2 parallel lines signifying stability. — European Union [ 3 ] The official story of the design history of the euro sign is disputed by Arthur Eisenmenger , a former chief graphic designer for the European Economic Community , who says ...
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.
The triple bar or tribar, ≡, is a symbol with multiple, context-dependent meanings indicating equivalence of two different things. Its main uses are in mathematics and logic. It has the appearance of an equals sign = with a third line.
Equals sign (=), a mathematical ... "Equal", a 2016 song by ... EQUAL Community Initiative, an initiative within the European Social Fund of the European Union. See also