Abstracta Iranica

Imprimer cette page   Signaler cette page  

330
Rosenfeld, Boris A. et Hogendijk, Jan P.
« A Mathematical Treatise Written in the Samarqand Observatory of Ulugh Beg ». Zeitschrift für Geschichte der Arabisch-Islamischen Wissenschaften, 15 (2002 - 2003), pp. 25-65.

The mathematician and astronomer Ġiyāṯ al-Dīn Jamšīd al-Kāšī from Kāšān, who worked at the observatory of Ulugh Beg in Samarkand until his death in 1429, devised a well-known algorithm by means of which the sine of one degree can be calculated with arbitrary accuracy. This article presents a translation of a contemporary commentary describing this algorithm, which is extent in at least eight manuscript copies (a ninth copy was recently found in Oxford), together with a facsimile of a lithograph edition of this work published in Tehran in 1881/82. Five of the extant copies attribute the commentary to al-Kāšī’s colleague at Samarkand, Qāḍī-Zāde al-Rūmī, but the first author of this article maintains that it could have been written by Ulugh Beg himself.

Benno van Dalen

Pour citer cette recension

Benno van Dalen. Rosenfeld, Boris A. et Hogendijk, Jan P., « A Mathematical Treatise Written in the Samarqand Observatory of Ulugh Beg ». Zeitschrift für Geschichte der Arabisch-Islamischen Wissenschaften, 15 (2002 - 2003), pp. 25-65., Abstracta Iranica [En ligne], Volume 26, mis en ligne le : 7 décembre 2005. URL http://abstractairanica.revues.org/document2357.html. Consulté le 10 janvier 2009.