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Where and When Did the Symbols + and ndash; Originate? The first appearance of + and – in English was in the 1551 book on algebra The Whetstone of Witte by the Oxford mathematician Robert Recorde, who also introduced the equal sign as the rather longer than today's symbol "═ " In describing the plus and minus signs Recorde wrote: "There be other 2 signes in often use of which the first is made
Definition of plus sign - PCMag The plus sign (+) means "ADD" in programming and on calculator keyboards For example, 10 + 7 means 10 added to 7 It is also used as a concatenation symbol for text fields For example, city
The Wild and Contentious History of Mathematical Symbols Eventually the plus and minus signs became universal, as did the English symbol for equality, but only after decades of famous mathematicians competing in these popularity contests to set the
Addition - Wikipedia The plus sign Addition is written using the plus sign "+" between the terms, and the result is expressed with an equals sign For example, + = reads "one plus two equals three" [2] Nonetheless, some situations where addition is "understood", even though no symbol appears: a whole number followed immediately by a fraction indicates the sum of the two, called a mixed number, with an example, [3
Sign (mathematics) - Simple English Wikipedia, the free encyclopedia In mathematics, the word sign refers to the property of being positive or negative Every real number that is non-zero is either positive or negative, and therefore has a sign Zero itself is without a sign, or signless In addition to putting signs into real numbers, the word sign is used throughout mathematics to indicate parts of mathematical objects that mean positivity and negativity