Aryabhatiya, an astronomical treatise of 118 verses written by Aryabhata of Pataliputra came out in the Gupta age. The mathematical section of Aryabhatiya covers algebra, arithmetic, plane and spherical trigonometry, and quadratic equations. It is in this work that Aryabhata displays an awareness of both the zero and the decimal system.
Apart from Aryabhatiya, he also wrote the Aiya-siddhanta, a lost work on astronomical computations, which is known through the writings of Aryabhata’s contemporary, Varahamihira, and later mathematicians and commentators, including Brahmagupta and Bhaskara I. Romaka Siddhanta was another popular book on astronomy which was written down in the Gupta period. It was influential on the work of Varahamihira.
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