File:Ybc7289-bw.jpg
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
Licensing
I, the copyright holder of this work, hereby publish it under the following licenses:
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
  
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| This licensing tag was added to this file as part of the GFDL licensing update. |
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| Annotations | This image is annotated: View the annotations at Commons |
