Jamshīd al-Kāshī
Persian astronomer and mathematician
Born
1380
645 years ago
Died
June 22nd, 1429
595 years ago — 49 years old
Category
Scientists & Innovators
Country
Iran
Links & References
Contributed significantly to astronomy and mathematics during the 15th century. Developed theories on planetary motions and created accurate astronomical tables. Worked on the calculation of sine functions, which advanced understanding of trigonometry. Wrote 'Zij-i Ilkhani', a comprehensive astronomical text that included calculations for the positions of the sun, moon, and planets.
Authored 'Zij-i Ilkhani'
Advanced trigonometric calculations
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