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Ybc7289-bw.jpg (338 × 315 pixels, file size: 20 KB, MIME type: image/jpeg)

Summary

Description

A black and white rendition of my own photograph of the Yale Babylonian Collection's Tablet YBC 7289 (c. 1800–1600 BCE), showing a Babylonian approximation to the square root of 2 (1 24 51 10 w: sexagesimal) in the context of Pythagoras' Theorem for an isosceles triangle. The tablet also gives an example where one side of the square is 30, and the resulting diagonal is 42 25 35 or 42.4263888...(30 x square root of 2). All use should attribute both me (mentioning http://www.math.ubc.ca/~cass/Euclid/ybc/ybc.html) and the Yale Babylonian Collection as the original holder of the tablet.

Author: Bill Casselman (mailto:cass@math.ubc.ca)
Date 25 May 2007 (original upload date), object c. 1800–1600 BCE
Source Own work
Author Bill Casselman

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I, the copyright holder of this work, hereby publish it under the following licenses:
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attribution
This file is licensed under the Creative Commons Attribution 2.5 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
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Babylonian mathematics

YBC 7289

inception

25 May 2007

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image/jpeg

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Date/TimeThumbnailDimensionsUserComment
current16:48, 25 May 2007Thumbnail for version as of 16:48, 25 May 2007338 × 315 (20 KB)BillcasselmanA black and white rendition of my own photograph of the tablet YBC 7289 (original dated 1800 B.C.), showing a Babylonian approximations to the square root of 2 in the context of Pythagoras' Theorem for an isosceles triangle. The original tablet is in the

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