Jyeṣṭhadeva
Jyeṣṭhadeva (c. 1500 – c. 1575) was an astronomer-mathematician of the Kerala school of astronomy and mathematics founded by Madhava of Sangamagrama (c. 1350 – c. 1425). 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 calculus like Taylor and infinity series. Jyeṣṭhadeva also authored Drk-karana, a treatise on astronomical observations.
Jyeṣṭhadeva | |
|---|---|
| Born | c. 1500 |
| Died | c. 1575 |
| Occupation | Astronomer-mathematician |
| Known for | Authorship of Yuktibhāṣā |
| Notable work | Yuktibhāṣā, Drkkarana |
| Relatives | Parangngottu (Sanskritised as Parakroda) family |
| Notes | |
Pupil of Damodara, contemporary of Nilakantha Somayaji, teacher of Achyuta Pisharati | |
According to K. V. Sarma, the name "Jyeṣṭhadeva" is most probably the Sanskritised form of his personal name in the local language Malayalam.