Question

who is bharma Gupta
​

Answer 1

Brahmagupta was an Indian mathematician and astronomer. He is the author of two early works on mathematics and astronomy: the Brāhmasphuṭasiddhānta, a theoretical treatise, and the Khaṇḍakhādyaka, a more practical text. Brahmagupta was the first to give rules to compute with zero.

Answer 2

Brahmagupta, one of the most accomplished of the ancient Indian astronomers.

Brahmagupta was born and grew up in western India.

In his time discovering and proving that the product of two negative numbers is a positive number was quite an intellectual achievement.