The Diagonal of a Square tablet

3D Model

Old Baylonian period student’s mathematical exercise tablet.

Collection label reads “The calculation employs the principle of the sides of an isosceles right triangle are a 1:1:√2 ratio.”

Yale Peabody Museum of Natural History, Yale Babylonian Collection, Catalog No. BC.021354 (Original Catalog No. YBC 7289)

3D featured in the exhibit Ancient Mesopotamia Speaks at the Yale Peabody Museum 6 April 2019 – 30 June 2020.

For more information on this tablet and previous digitization, please see news feature: Lynch, P. A 3,800-year journey from classroom to classroom. In Yale News, 11 April 2016.

Scanned and processed by Yale Institute for the Preservation of Cultural Heritage Digital Imaging Specialist Chelsea Alene Graham using Artec Space Spider and Artec Studio Professional in 2017. Geometry uploaded at 0.15 mm resolution.