Earliest Uses of Various Mathematical Symbols

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These pages show the names of the individuals who first used various common mathematical symbols, and the dates the symbols first appeared. The most important written source is the definitive A History of Mathematical Notations by Florian Cajori.

Level
Grade 7 / Year 8, Grade 8 / Year 9, Grade 9 / Year 10, Grade 10 / Year 11, Grade 11 / Year 12, Grade 12 / Year 13
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