Question

The symbols '+', '-', '=' are three of the most widely used mathematical symbols. Have you ever wondered who invented these symbols?(tell me the answer if you know )​

Answer 1

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Answer 2

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Plus(+): Robert Recorde introduced plus to Britain in 1557.

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Minus(-): Kate invented the symbol. Robert Recorde also introduced the modern use of to the UK in 1557.

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Multiplication(×): Attributed to WilliamOughtred who first used it in an appendix to the 1618.

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Obelus(÷): Johann Rahn was first used as a symbol for division in 1659 in the algebra book Teutsche Algebra.

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Robert Recorde, the designer of the equals sign, introduced plus and minus to Britain in 1557 in The Whetstone of Witte: "There be other 2 signes in often use of which the first is made thus + and betokeneth more: the other is thus made – and betokeneth lesse."