For thousands of years, Indians have looked up at the stars, weaving stories, tracking time, and unlocking the secrets of the ...

He revolutionised algebra and his seminal works in mathematics, astronomy and geography have ... algebraic notation generally used today. The book showed how to solve polynomial equations, and ...

Much of medieval astronomy and geography were built on his ideas: his world map, published as part of his treatise Geography in the 2nd century, was the first to use longitudinal and latitudinal ...