Aryabhata II

Āryabhaṭa (c. 920 – c. 1000) also known as Arya Diya Jankhi was an Indian mathematician and astronomer, and the author of the Maha-Siddhanta. The numeral II is given to him to distinguish him from the earlier and more influential Āryabhaṭa I. Scholars are unsure of when exactly he was born, though David Pingree dates of his main publications between 950–1100. The manuscripts of his Maha-Siddhanta have been discovered from Gujarat, Rajasthan, Uttar Pradesh, and Bengal, so he probably lived in northern India.