Kelallur Neelakandhan Somayaji: Difference between revisions
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See also : [[Nilakantha Somayaji]] |
See also : [[Nilakantha Somayaji]] |
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'''Kelallur Neelakandhan Somayaji''' (AD 1465–1545) was one of the foremost astronomers in [[Kerala]]. Known popularly as '''Kelallur Chomaathiri''', he is considered an equal to [[Vatasseri Parameshwaran Nambudiri]]. |
'''Kelallur Neelakandhan Somayaji''' (AD 1465–1545) was one of the foremost astronomers in [[Kerala]]. Known popularly as '''Kelallur Chomaathiri''', he is considered an equal to [[Vatasseri Parameshwaran Nambudiri]]. |
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*[http://www.namboothiri.com/articles/contributions.htm http://www.namboothiri.com/articles/contributions.htm] |
*[http://www.namboothiri.com/articles/contributions.htm http://www.namboothiri.com/articles/contributions.htm] |
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| NAME = Somayaji, Kelallur Neelakandhan |
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| DATE OF BIRTH = 1465 |
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| DATE OF DEATH = 1545 |
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[[Category:Indian mathematicians]] |
[[Category:Indian mathematicians]] |
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Revision as of 00:52, 23 September 2011
See also : Nilakantha Somayaji
Kelallur Neelakandhan Somayaji (AD 1465–1545) was one of the foremost astronomers in Kerala. Known popularly as Kelallur Chomaathiri, he is considered an equal to Vatasseri Parameshwaran Nambudiri.
Early life
Neelakandhan Somayaji was born to Jathavedan and Arya in Nambudiri family of Kelallur Mana of Thrikkandiyur, near Tirur, and belonged to the Gaargya Gothram, Aaswalaayana Soothram of Rig vedam. He studied Vedam, Mathematics and the basics of Astronomy from Vatasseri Damodaran Namboodiri (son of the famous Parameswaran Namboodiri).
Works
His most important work is Thanthra Samgraham (a treatise on Mathematics and Astronomy) of eight chapters with 432 verses, written in six days from Meenam 26 of 676 ME to Medam 1 the same year. Two commentaries were written on this work, Yukthi Bhaasha (in Malayalam) by Paarangot Jyeshtadevan Namboodiri and Yukthi Deepika by Sankara Varier.
Another of his important works is a Bhaashyam (commentary) on Aaryabhateeyam. His other works include Jyorthir Meemaamsa, Chandra Chhaayaa Ganitham (calculations relating to moon's shadow), Sidhhantha Darpanam (on the Laws of Astronomy) and its Vyaakhyaa, Golasaaram (Essence of Spherical Astronomy), Grahana Nirnayam, Grahanaashtakam, Graha Pareekshaa Kramam and Sundara Raaja Prasnotharam. His commentary on Aaryabhateeyam shows that his scholastic abilities extend beyond Jyotisham and Vedantam, to the realms of Mimamsa, Vyakaranam and Nyayam.