The equals sign, equality sign, or "=" is a mathematical symbol used to indicate equality. It was invented in 1557 by Robert Recorde. The equals sign is placed between the things stated to have the same value, as in an equation. It is assigned to the Unicode and ASCII character 003D in hexadecimal, 0061 in decimal.
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Some articles on equals sign:
... The equals sign can be used incorrectly within a mathematical argument, if used in a manner that connects steps of math in a non-standard way, rather than to show equality ...
... A notorious example for a bad idea was the choice of the equal sign to denote assignment ... footing The left operand (a variable) is to be made equal to the right operand (an expression) ... In some languages, such as BASIC, a single equals sign ("=") is used for both the assignment operator and the equality relational operator, with context determining which ...
... Some consider this to be an abuse of notation, since the use of the equals sign could be misleading as it suggests a symmetry that this statement does not have ... However, the use of the equals sign is customary ... that "mathematicians customarily use the = sign as they use the word 'is' in English Aristotle is a man, but a man isn't necessarily Aristotle." ...
Famous quotes containing the words sign and/or equals:
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—For the State of Maine, U.S. public relief program (1935-1943)
“Whereas children can learn from their interactions with their parents how to get along in one sort of social hierarchythat of the familyit is from their interactions with peers that they can best learn how to survive among equals in a wide range of social situations.”
—Zick Rubin (20th century)