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Mathematics in Ancient and Medieval India c4.s4.t5: Jñānarāja (c. 1503 A.D.)

Mathematics in Ancient and Medieval India c4.s4.t5

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Jñānarāja (c. 1503 A.D.)

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Jñānarāja, the author of *Siddhātasundara*² and *siddhāntasundarabīja*³ was the son of Naganātha. Both the works still remain unpublished. The *Siddhāntasundara* in the Sphuṭādhyāya chapter contains sine table and trigonometrical relations.⁴ This was written in 1503 A.D.⁵ His *siddhāntasundarbīja* is a separate work on algebra which was written as a sequel to Bhāskara II's *Bījagaṇita*. This *Bījagaṇita* has been repeatedly cited by his son Sūryadāsa.

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² For Mss. vide our *Bibliography*, p. 93-94.

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³ One good copy is deposited in the *Sans. College Library*, *Benares*. Vide Catalogue of the Library, printed by the order of the Government, Allahabad, Vol. 2, p. 257.

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⁴ Vide. p. 17-18 of Ms. deposited in *Asiatic Society Bengal* (No. 8210).

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⁵ Vide. Sudhakara's *Gaṇakataraṅginī*. Entry on Jñānarāja.

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