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YBC 7289 is a Babylonian clay tablet notable for containing an accurate sexagesimal approximation to the square root of 2, the length of the diagonal of a unit square. This number is given to the equivalent of six decimal digits, "the greatest known computational accuracy ... in the ancient world". The tablet is believed to be the work of a student in southern Mesopotamia from some time between 1800 and 1600 BC. It was donated to the Yale Babylonian Collection by J. P. Morgan.
In mathematics, a matrix is a rectangular array or table of numbers, symbols, or expressions, arranged in rows and columns, which is used to represent a mathematical object or a property of such an object.
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References
- ↑ DePompei, Roberta (2011). "Paragraphia". Encyclopedia of Clinical Neuropsychology. p. 1854. doi:10.1007/978-0-387-79948-3_905. ISBN 978-0-387-79947-6 – via springer.com.
{{cite book}}: Missing or empty|title=(help) - ↑ Vagouroux, Nadine; et al. (2015). "Designing alternative communication systems". In Corine Astesano; Mélanie Jucla (eds.). Neuropsycholinguistic Perspectives on Language Cognition. Psychology Press. p. 194. ISBN 9781135099473.