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Thus, the explication of meaning is due to commentators.

The text consists of the 108 verses and 13 introductory verses, and is divided into four pādas or chapters: The Aryabhatiya presented a number of innovations in mathematics and astronomy in verse form, which were influential for many centuries.

However, Aryabhata did not use the Brahmi numerals.

Continuing the Sanskritic tradition from Vedic times, he used letters of the alphabet to denote numbers, expressing quantities, such as the table of sines in a mnemonic form.

The place-value system, first seen in the 3rd-century Bakhshali Manuscript, was clearly in place in his work.

While he did not use a symbol for zero, the French mathematician Georges Ifrah argues that knowledge of zero was implicit in Aryabhata's place-value system as a place holder for the powers of ten with null coefficients.

The mathematical part of the Aryabhatiya covers arithmetic, algebra, plane trigonometry, and spherical trigonometry.

It also contains continued fractions, quadratic equations, sums-of-power series, and a table of sines.

Similarly, the fact that several commentaries on the Aryabhatiya have come from Kerala has been used to suggest that it was Aryabhata's main place of life and activity; however, many commentaries have come from outside Kerala, and the Aryasiddhanta was completely unknown in Kerala.) at Kusumapura, and, because the university of Nalanda was in Pataliputra at the time and had an astronomical observatory, it is speculated that Aryabhata might have been the head of the Nalanda university as well.Direct details of Aryabhata's work are known only from the Aryabhatiya.The name "Aryabhatiya" is due to later commentators. His disciple Bhaskara I calls it Ashmakatantra (or the treatise from the Ashmaka).It also contained a description of several astronomical instruments: the gnomon (shanku-yantra), a shadow instrument (chh Ay A-yantra), possibly angle-measuring devices, semicircular and circular (dhanur-yantra / chakra-yantra), a cylindrical stick yasti-yantra, an umbrella-shaped device called the chhatra-yantra, and water clocks of at least two types, bow-shaped and cylindrical.A third text, which may have survived in the Arabic translation, is Al ntf or Al-nanf.