Brahmagupta

Brahmagupta was an Indian mathematician and astronomer who is credited as the first person to understand and formalize the concept of the number zero for nothing in mathematics. He is the author of two early works on mathematics and astronomy: the Brāhmasphuṭasiddhānta, a theoretical treatise, and the Khandakhadyaka, a more practical text. He was the first Indian scholar to describe gravity as an attractive force, and used the term "gurutvākarṣaṇam" in Sanskrit to describe it. He is also credited with the first clear description of the quadratic formula in his main work, the Brāhma-sphuṭa-sidd…