Bharmagupta
Bharmagupta was an Indian mathematician and astronomer who lived during the 7th century CE. He is best known for his work on the Aryabhatiya, a foundational text in Indian mathematics and astronomy. Bharmagupta's contributions to mathematics include the development of the concept of zero as a number, distinct from the empty space used in calculations. He also made significant advancements in algebra, particularly in solving quadratic equations. His work on astronomy involved the calculation of planetary positions and the determination of the length of the year. Bharmagupta's mathematical and astronomical theories were highly influential in the development of Indian mathematics and astronomy, and his ideas continue to be studied and appreciated by scholars today.