Jyeṣṭhadeva (Malayalam: ജ്യേഷ്ഠദേവൻ) (c. – c.) was an astronomer-mathematician of the Kerala school of astronomy and mathematics founded by Madhava of Sangamagrama (c. – c.). He is best known as the author of Yuktibhāṣā, a commentary in Malayalam of Tantrasamgraha by Nilakantha Somayaji (1444–1544). In Yuktibhāṣā, Jyeṣṭhadeva had given complete proofs and rationale of the statements in Tantrasamgraha. This was unusual for traditional Indian mathematicians of the time. The Yuktibhāṣā is now believed to contain the essential elements of the calculus and one of the earliest treatise on the subject. Jyeṣṭhadeva also authored Drk-karana a treatise on astronomical observations.
Born |
1500
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Died |
1575 (aged 74)
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Zodiac | |
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