Jamshid al-Kashi

Ghiyāth al-Dīn Jamshīd Masʿūd al-Kāshī (or al-Kāshānī) (Persian: غیاث‌الدین جمشید کاشانی Ghiyās-ud-dīn Jamshīd Kāshānī; c. 1380 – 22 June 1429) was a Persian 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Much of al-Kāshī's work was not brought to Europe and still, even the extant work, remains unpublished in any form.

Notable works: Miftah al-hisab, Risāla al-watar waʾl-jaib, Risala al-muhitiyya, Sullam al-sama'

Source: Wikipedia — https://en.wikipedia.org/wiki/Jamshid_al-Kashi