Brahmagupta

Brahmagupta (c. 598 – c. 668 CE) was an Indian mathematician and astronomer. He is the author of two early works on mathematics and astronomy: the Brāhmasphuṭasiddhānta (BSS, "correctly established doctrine of Brahma", dated 628), a theoretical treatise, and the Khaṇḍakhādyaka ("edible bite", dated 665)

Brahmagupta was born in 598 CE according to his own statement. He lived in Bhillamāla in Gurjaradesa (modern Bhinmal in Rajasthan, India) during the reign of the Chavda dynasty ruler, Vyagrahamukha. He was the son of Jishnugupta and was a Hindu by religion, in particular, a Shaivite. He lived and worked there for a good part of his life. Prithudaka Svamin, a later commentator, called him Bhillamalacharya, the teacher from Bhillamala

Brahmagupta  composed the following treatises:


 * Brāhmasphuṭasiddhānta, composed in 628 CE.
 * Khaṇḍakhādyaka, composed in 665 CE.
 * Grahaṇārkajñāna, (ascribed in one manuscript)