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Brahmagupta(brä'məgo͝op`tə), c.598–c.660, Indian mathematician and astronomer. He was among the first to meaningfully discuss the concepts of zero and of negative numbers. 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 AryabhataAryabhata
, c.476–550, Hindu mathematician and astronomer. He is one of the first known to have used algebra; his writings include rules of arithmetic and of plane and spherical trigonometry, and solutions of quadratic equations.
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Born circa 598; died 660. Indian mathematician and astronomer.
Brahmagupta’s work Revision of the System of Brahma (628), a significant part of which is devoted to arithmetic and algebra, has come down to us. His studies of arithmetic progression (the well-known law of its summation) and the solution of quadratic equations that have a real solution are expounded in it.