The Columbia Encyclopedia, Sixth Edition. 2001-07.
Brahmagupta
(brä´´mgp´t) (KEY) , c.598–c.660, Indian mathematician and astronomer. He wrote in verse the Brahma-sphuta-siddhanta [improved system of Brahma], a standard work on astronomy containing two chapters on mathematics that were translated into English by H. T. Colebrooke in Algebra … from the Sanskrit of Brahmagupta (1817). A shorter treatise, The Khandakhadyaka (tr. 1934), expounded the astronomical system of Aryabhata.
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