Author
Nilakantha Somayaji
Indian mathematician
wd:Q2548030
1444

1544
occupation:
mathematician, astronomer, astrologer
Kelallur Nilakantha Somayaji (also referred to as Kelallur Comatiri; 14 June 1444 – 1544) was a major mathematician and astronomer of the Kerala school of astronomy and mathematics in India. One of his most influential works was the comprehensive astronomical treatise Tantrasamgraha completed in 1501. He had also composed an elaborate commentary on Aryabhatiya called the Aryabhatiya Bhasya. In this Bhasya, Nilakantha had discussed infinite series expansions of trigonometric functions and problems of algebra and spherical geometry. Grahapareeksakrama is a manual on making observations in astronomy based on instruments of the time. Known popularly as Kelallur Chomaathiri, he is considered an equal to Kottessori Parameshwaran Kundisori.
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series
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1Tantrasamgraha
astronomical treatise written by Nilakantha Somayaji
wd:Q1768456
author:
Nilakantha Somayaji
1500