Vaṭeśvara

Vaṭeśvara (Sanskrit: वटेश्वर Sanskrit pronunciation: [vəʈeːɕvərə]) (born 880), was a tenth-century Indian mathematician from Kashmir^[1][2] who presented several trigonometric identities. He was the author (at the age of 24)^[3] of Vaṭeśvara-siddhānta written in 904 AD, a treatise focusing on astronomy and applied mathematics.The work criticized Brahmagupta and defended Aryabhatta I. An edition of the first three chapters was published in 1962 by R. S. Sharma and Mukund Mishra. Al Biruni referred to the works by Vateswara, particularly the Karaṇasāra, noting that the author was the son of Mihdatta who belonged to Nagarapura (also given as Anandapura which is now Vadnagar). The Karaṇasāra uses 821 Saka era (899 AD) as a reference year.^[4]

References

1. R.N. Rai, Karanasara of Vatesvara, Indian National Science Academy (1970), vol. 6, n. I, p. 34 2015-06-09 at the Wayback Machine
2. Vaṭeśvara, Vaṭeśvara-siddhānta and Gola of Vaṭeśvara: English translation and commentary, National Commission for the Compilation of History of Sciences in India (1985), p. xxvii
3. Kim Plofker, Mathematics in India, Princeton University Press (2009), p. 326
4. Kolachana, Aditya; Mahesh, K.; Ramasubramanian, K. (2019), Kolachana, Aditya; Mahesh, K.; Ramasubramanian, K. (eds.), "Hindu astronomer Vaṭeśvara and his works", Studies in Indian Mathematics and Astronomy, Singapore: Springer Singapore, pp. 616–624, doi:10.1007/978-981-13-7326-8_32, ISBN 978-981-13-7325-1, S2CID 194346382, retrieved 30 May 2022

Other sources

• K. V. Sarma (1997), "Vatesvara", Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures edited by Helaine Selin, Springer, ISBN 978-0-7923-4066-9