Jovan StosicBrahmagupta (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), a more practical text.
Brahmagupta was the first to give rules for computing with zero. The texts composed by Brahmagupta were in elliptic verse[clarification needed] in Sanskrit, as was common practice in Indian mathematics. As no proofs are given, it is not known how Brahmagupta’s results were derived.
In 628 CE, Brahmagupta first described gravity as an attractive force, and used the term “gurutvākarṣaṇam (गुरुत्वाकर्षणम्)” in Sanskrit to describe it.