Who authored the 'Almagest', the 2nd-century mathematical and astronomical treatise that preserved early chord tables?
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Ptolemy
Claudius Ptolemy's Almagest was the definitive text on astronomy for 1,200 years. It contained a table of chords with an accuracy equivalent to modern five-place sine tables.
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- Which 2nd-century mathematician wrote the astronomical treatise that preserved early chord tables?