References for Nilakantha

1. D Pingree, Biography in Dictionary of Scientific Biography (New York 1970-1990).

Books:

2. G G Joseph, The crest of the peacock (London, 1991).

Articles:

3. T Hayashi, A set of rules for the root-extraction prescribed by the sixteenth-century Indian mathematicians, Nilakantha Somastuvan and Sankara Variyar, Historia Sci. (2) 9 (2) (1999), 135-153.
4. R Roy, The discovery of the series formula for π by Leibniz, Gregory and Nilakantha, Math. Mag. 63 (5) (1990), 291-306.
5. K V Sarma and V S Narasimhan, N Somayaji, Tantrasamgraha of Nilakantha Somayaji (Sanskrit, English translation), Indian J. Hist. Sci. 33 (1) (1998), Suppl.
6. K V Sarma and V S Narasimhan, N Somayaji, Tantrasamgraha of Nilakantha Somayaji (Sanskrit, English translation), Indian J. Hist. Sci. 33 (2) (1998), Suppl.
7. K V Sarma and V S Narasimhan, N Somayaji, Tantrasamgraha of Nilakantha Somayaji (Sanskrit, English translation), Indian J. Hist. Sci. 33 (3) (1998), Suppl.

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