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'''Shankara Variyar''' ({{IAST3|Śaṅkara Vāriyar}}; {{circa|1500|1560}}<ref name="ggj">{{citation|title=A Passage to Infinity: Medieval Indian Mathematics from Kerala and Its Impact|first=George Gheverghese|last=Joseph|publisher=SAGE Publications India|year=2009|isbn=9788132104810|page=21|url=https://books.google.com/books?id=rNKGAwAAQBAJ&pg=PA21}}.</ref>) was an [[astronomer]]-[[mathematician]] of the [[Kerala school of astronomy and mathematics]]. His family were employed as temple-assistants in the temple at {{IAST|Tṛkkuṭaveli}} near modern [[Ottapalam]].<ref name="plofker">{{cite book|last=Plofker|first=Kim|title=Mathematics in India|title-link= Mathematics in India (book) |publisher=[[Princeton University Press]]|location=Princeton|year=2009|pages=220, 324}}</ref><br />
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==Mathematical lineage==<br />
He was taught mainly by [[Nilakantha Somayaji]] (1444–1544), the author of the [[Tantrasamgraha]] and [[Jyesthadeva]] (1500–1575), the author of [[Yuktibhāṣā]]. Other teachers of Shankara include [[Netranarayana]], the patron of Nilakantha Somayaji and [[Citrabhanu|Chitrabhanu]], the author of an astronomical treaties dated to 1530 and a small work with solutions and proofs for algebraic equations.<ref name="plofker" /><br />
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==Works==<br />
The known works of Shankara Variyar are the following:<ref name="plofker" /><br />
* ''Yukti-dipika'' - an extensive commentary in verse on ''Tantrasamgraha'' based on ''Yuktibhāṣā''.<br />
* ''Laghu-vivrti'' - a short commentary in prose on ''Tantrasamgraha''.<br />
* ''[[Kriyakramakari|Kriya-kramakari]]'' - a lengthy prose commentary on [[Lilavati]] of [[Bhaskara II]].<br />
* An astronomical commentary dated 1529 CE.<br />
* An astronomical handbook completed around 1554 CE.<br />
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==References==<br />
{{reflist}}<br />
* [[K. V. Sarma]] (1997), "Sankara Variar", [[Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures]] edited by [[Helaine Selin]], Springer, {{ISBN|978-0-7923-4066-9 }}</ref><br />
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{{Indian mathematics}}<br />
{{Authority control}}<br />
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{{DEFAULTSORT:Variyar, Shankara}}<br />
[[Category:Indian Hindus]]<br />
[[Category:Kerala school of astronomy and mathematics]]<br />
[[Category:Year of death unknown]]<br />
[[Category:Year of birth uncertain]]<br />
[[Category:16th-century Indian mathematicians]]<br />
[[Category:People from Ottapalam]]<br />
[[Category:Scientists from Kerala]]<br />
[[Category:16th-century Indian astronomers]]</div>->Citation bot