Plimpton 322 and Old Babylonian Trigonometry
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Plimpton 322 is a famous mathematical tablet with 15 rows of Pythagorean triples. In this video we look at Old Babylonian geometry and explain why Plimpton 322 is actually a trigonometric table, but based on an older form of trigonometry which is not angle based. This explanation is the work of Daniel Mansfield and N J Wildberger, published in Historia Mathematicae in 2017. Here is a link to the article: https://www.sciencedirect.com/science...And here is a link to the overview article in The Conversation: https://theconversation.com/written-i...