Jamshīd al-Kāshī
Persian astronomer and mathematician
Persian astronomer and mathematician
1380
646 years ago
Scientists & Innovators
Iran
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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