Material for a workshop on abjad-numerals

This workshop was held in Istanbul on August 23, 2013, at the Second International Summerschool of the Prof. Dr. Fuat Sezgin Foundation

Presentation

Handout with exercises

Digitized version of the entire astronomical manuscript Or. 1442 in Utrecht University Library. Most of this mansucript is part of the This is taken from al0-Zij al-mulakhkhas min al-shahi ala al-rasad al-ala-i by Athir al-Din Mufaddal ibn `Umar al-Abhari (died ca. 1265 CE in Iran).
The sine table is in p. 35 of this document, see link

The astrolabe of al-Ashraf, Sultan of Yemen (1291) in the Metropolitan Museum of Art, New York City.

The Abbasid astrolabe in the History of Science Museum (Museo Galileo) in Florence, Italy.

Download the part on astrolabes in the Catalogue of the astronomical instruments in the Istanbul Museum for History of Science and Technology in Islam. The two astrolabes are on pp. 94 (second astrolabe) and 105 (first astrolabe). 2013