Āryabhatīya, an astronomical treatise,'s the magnum opus and only extant work of the 5th century Indian mathematician, Aryabhata. Structure and style The text's 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 for… (More on Aryabhatiya)