Śaṅkaranārāyaṇa
Indian astronomer and mathematician / From Wikipedia, the free encyclopedia
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Sankara Narayana (c. 840 – c. 900 AD) was an Indian astronomer-mathematician in the court of Ravi Kulasekhara (c. 844 – c. 883 AD) of the Chera Perumal kingdom of Kerala.[1][2] He is best known as the author of Laghu Bhaskariya Vivarana or Vyakha (869/870 AD), a detailed commentary on treatise Laghu Bhaskariya by 7th century mathematician Bhaskara I (which in turn was based on the works of the 5th century polymath Aryabhata).[3][4] Sankara Narayana is known to have established an astronomical observatory at the port of Kodungallur in central Kerala.[2][5]
Sankara Narayana | |
---|---|
Born | c. 840 CE |
Nationality | Indian |
Occupation | Astronomer-mathematician |
Notable work | Laghu Bhaskariya Vivarana |
Laghu Bhaskariya Vivarana (Chapter VII), produced in the court of king Ravi Kulasekhara at Kodungallur, explicitly states that it was composed in Saka Year 791 (=869/70 AD).[4][1] It is also mentions that the year was the 25th regnal year of king Ravi Kulasekhara.[6] In the second verse of the vivarana Narayana remembers five major precessors in the field of mathematics (Aryabhata, Varahamihira, Bhaskara I, Govinda and Haridatta), including his possible master Govinda (c. 800 – c. 860 AD).[6]