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Glossary of mathematical symbols
Mathematical operators and symbols in Unicode
Mathematical Alphanumeric Symbols
List of logic symbols
List of Unicode characters
The first tables of trigonometric functions known to be made were by Hipparchus (c.190 – c.120 BCE) and Menelaus (c.70–140 CE), but both have been lost. Along with the surviving table of Ptolemy (c. 90 – c.168 CE), they were all tables of chords and not of half-chords, that is, the sine function. [1]
Greek letters used in mathematics, science, and engineering
Unicode subscripts and superscripts