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((More citations needed|date=July 2009))

((Use dmy dates|date=August 2019))
((Use Indian English|date=August 2019))

'''Chennas Narayanan Namboodiripad''' (born 1428) was a 15th-century [[mathematician]] and [[Tantra]] ritualist from [[Kerala]], [[India]].

Narayanan Namboodiripad was considered to be an authority in the fields of ''Vaasthusaastram'' (Indian Architecture), Mathematics and [[Tantra]]m. He authored a book titled ''Thanthra Samuchayam'' which is still considered as the authentic reference manual in the field of temple architecture and rituals.

Other contributions to mathematics include:

* A method of arriving at a circle starting with a square, and successively making it a regular octagon, a regular 16-sided, a 32-sided, 64-sided polygons, etc.
* Co-ordinate system of fixing points in a plane.
* Converting a square to a regular hexagon having approximately equal area.
* Finding the width of a regular octagon, given the perimeter.

==References==
*[https://www.namboothiri.com/articles/thanthram.htm https://www.namboothiri.com/articles/thanthram.htm]

==See also==
*[[Indian Mathematics]]

((DEFAULTSORT:Namboodiripad, Chennas Narayanan))
[[Category:Scientists from Kerala]]
[[Category:1428 births]]
[[Category:Year of death missing]]
[[Category:Kerala school of astronomy and mathematics]]
[[Category:15th-century Indian mathematicians]]

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