Brahmagupta: Malsamoj inter versioj

Brahmagupta naskiĝis en 598 a.K. laŭ sia propra aserto. Li loĝis en ''Bhillamala'' (moderna [[Bhinmal]]) dum la regado de la reganto de la Ĉapa dinastio nome Vjagrahamuĥa. Li estis la filo de Jiŝnugupta. Li estis [[Ŝivao|Ŝivaisma]] laŭ religio.<ref>{{harvnb|Bhattacharyya|2011|p=185}}: "Brahmagupta, one of the most celebrated mathematicians of the East, indeed of the world, was born in the year 598 c.e., in the town of Bhillamala during the reign of King Vyaghramukh of the Chapa Dynasty."</ref> Eĉ kvankam plej fakuloj opinias ke Brahmagupta naskiĝis en Bhillamala, ne estas konkluda pruvaro por tio. Tamen, li loĝis kaj laboris tie dum granda parto de sia vivo. Prithudaka Svamin, posta komentisto, nomigis lin ''Bhillamalaĉarja'', nome la instruisto el Bhillamala.<ref>Gupta, Radha Charan (2008), Selin, Helaine, eld., Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures, Springer, pp. 162–163, ISBN 978-1-4020-4559-2, ISBN 1-4020-4425-9</ref> Sociologo G. S. Ghurye kredis ke li povus esti el la regiono [[Multano]] de la areo de Monto Abu.<ref name="Pillai1997">{{citation|last=Pillai|first=S. Devadas|title=Indian Sociology Through Ghurye, a Dictionary|url=http://books.google.com/books?id=P3uD22Ghqs4C&pg=PA216|year=1997|publisher=Popular Prakashan|isbn=978-81-7154-807-1|page=216|quote=Brahmagupta (b. 598 AD) was a native of either the Multan region of the Punjab (now this areas is in Pakistan) or the Abu region of Rajasthan.}}</ref>

 

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In the year 628, at an age of 30, he composed ''Brāhmasphuṭasiddhānta'' (the improved treatise of Brahma) which is believed to be a revised version of the received ''siddhanta'' of the Brahmapaksha school. Scholars state that he has incorported a great deal of originality to his revision, adding a considerable amount of new material. The book consists of 24 chapters with 1008 verses in the ''ārya'' meter. A good deal of it is astronomy, but it also contains key chapters on mathematics, including algebra, geometry, trigonometry and algorithmics, which are believed to contain new insights due to Brahmagupta himself.{{sfn|Gupta|2008|p=162}}{{sfn|Bhattacharyya|2011|pp=185-186}}{{sfn|Bose|Sen|Subbarayappa|1971}}