Govindasvāmi
Govindasvāmi (or Govindasvāmin) (c. 800 – c. 860) was an Indian mathematical astronomer most famous for his Bhasya, a commentary on the Mahābhāskarīya of Bhāskara I, written around 830. The commentary contains many examples illustrating the use of a Sanskrit place-value system and the construction of a sine table.
His work "Govindakriti" was a sequel to Āryabhaṭīya and is lost. His works have been quoted extensively by Sankaranarayana (869 AD) and Udayadivakara (1073 AD) and by Nilakantha Somayaji. Sankaranarayana was the director of the observatory founded in mahodayapuram, the capital of the Chera kingdom and is believed to be the student of Govinda Swami. In his book[1], Sankaranarayana gives explanations to the insightful questions of the king Revivarma, then ruler of Mahodayapuram and from these references the period of Sankaranarayana is known.
It is also believed that the nauka, a bhashya of brihat jathaka of Varahamihira is written by Govinda swami. Some scholars have suggested that the famous Dasadhayi is the abbreviated form of Nauka.
References
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- O'Connor, John J.; Robertson, Edmund F., "Govindasvami", MacTutor History of Mathematics archive, University of St Andrews.
- Gupta, R. C. (1971). "Fractional parts of Aryabhata's sines and certain rules found in Govindasvami's Bhasya on the Mahabhaskarya". Indian J. History Sci. 6: 51–59.
- Jha, S. K.; V N Jha (1991). "Computation of sine-table based on the Mahasiddhanta of Aryabhata II". J. Bihar Math. Soc. 14: 9–17.
- Meijering, Erik (March 2002). "A Chronology of Interpolation: From Ancient Astronomy to Modern Signal and Image Processing" (PDF). Proceedings of the IEEE. 90 (3): 319–342. doi:10.1109/5.993400. Archived from the original (– Scholar search) on 28 January 2007.
- Kerala Mathematics and its Possible Transmission to Europe 2009_ by George Gevarghese Joseph