Person: Kamalakara
Kamalakara was an Indian astronomer and mathematician who combined traditional Indian astronomy with Aristotelian physics and Ptolemaic astronomy as presented by Islamic scientists.
Mathematical Profile (Excerpt):
 Kamalakara's most famous work, the Siddhantatattvaviveka, was commented on by Kamalakara himself.
 In that chapter Kamalakara used the addition and subtraction theorems for the sine and the cosine to give trigonometric formulae for the sines and cosines of double, triple, quadruple and quintuple angles.
 The Siddhantatattvaviveka is a Sanskrit text and in it Kamalakara makes frequent use of the placevalue number system with Sanskrit numerals.
Born about 1616, Benares (now Varanasi), India. Died about 1700, India.
View full biography at MacTutor
Tags relevant for this person:
Ancient Indian, Astronomy, Origin India
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References
Adapted from other CC BYSA 4.0 Sources:
 Oâ€™Connor, John J; Robertson, Edmund F: MacTutor History of Mathematics Archive