Āryabhatīya, an astronomical treatise, is the magnum opus and only extant work of the 5th century Indian mathematician, Aryabhata. Structure and style The text is written in Sanskrit and structured into four sections, covering a total of 121 verses that describe different results using a mnemonic style typical for such works in India. 33 verses are concerned with mathematical rules. The four chapters are: (i) the astronomical constants and the sine table (ii) mathematics required f… (More on Aryabhatiya)