Known for: Establishing the culture of organised mathematical research in India Roemer’s Determination of Speed of Light 23. Known for: Calculated height of Mount Everest Notable Work: Siddhanta-samrat, Yantra-prakara 22. Notable Work: Combined traditional Indian astronomy with Aristotelian physics and Ptolemaic astronomy as presented by Islamic scientists Given formulae for sin(A/2) and sin(A/4) in terms of sin(A) and iterative formulae for sin(A/3) and sin(A/5) Given a table for finding the right ascension of a planet from its longitude. Notable Work: Produced accurate sine tables 20. Notable Work: Yukti-dipika - an extensive commentary in verse on Tantrasamgraha based on Yuktibhasa Laghu-vivrti - a short commentary in prose on Tantrasamgraha Kriya-kramakari - a lengthy prose commentary on Lilavati of Bhaskara II 18.
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