It has been established indirectly that he lived and worked around the 10th century.
Maha-Siddhanta is an astronomical compendium based on the orthodox tradition of Smrtis (passages from Vedic literature). The treatise written in Sanskrit consists of 18 chapters and 625 verses. The first 12 chapters deal with mathematical astronomy.
He covered the positions of the planets and their conjunctions with each other and the stars, eclipses of the sun and moon, and the phases and rising and setting of the moon and planets.
His extensive work also covered algebra and geometry, specially giving rules for solving the indeterminate equation by=ax+c, an calculating cube roots the rule of three and fractions.
Aryabhata II (c. 920 – 1000)
