Jamshid al-Kashi

Ghiyāth al-Dīn Jamshīd Kāshānī
Opening bifolio of a manuscript of al-Kashi's Miftah al-Hisab. Copy created in Safavid Iran, dated 1656
Titleal-Kashi
Personal
Bornc. 1380
Died22 June 1429 (1429-06-23) (aged 48)
ReligionIslam
EraIslamic Golden Age-Timurid Renaissance
RegionIran
Main interest(s)Astronomy, Mathematics
Notable idea(s)Pi decimal determination to the 16th place
Law of cosines
Notable work(s)Sullam al-Sama
OccupationPersian Muslim scholar
Muslim leader
Influenced

Ghiyāth al-Dīn Jamshīd Masʿūd al-Kāshī (or al-Kāshānī)[2] (Persian: غیاث الدین جمشید کاشانی Ghiyās-ud-dīn Jamshīd Kāshānī) (c. 1380 Kashan, Iran – 22 June 1429 Samarkand, Transoxania) was an astronomer and mathematician during the reign of Tamerlane.

Much of al-Kāshī's work was not brought to Europe and still, even the extant work, remains unpublished in any form.[3]

  1. ^ Cite error: The named reference st-andrews was invoked but never defined (see the help page).
  2. ^ A. P. Youschkevitch and B. A. Rosenfeld. "al-Kāshī (al-Kāshānī), Ghiyāth al-Dīn Jamshīd Masʿūd" Dictionary of Scientific Biography.
  3. ^ [1] iranicaonline.org