TRIGONOMETRY

                                         MATHEMATICS

Indian astronomers used trigonometry tables

Indian astronomers used trigonometry tables to estimate the relative distance of the Earth to the Sun and Moon

Golden Age Indian mathematicians made fundamental advances in the theory of trigonometry, a method of linking geometry and numbers first developed by the Greeks. They used ideas like the sine, cosine and tangent functions (which relate the angles of a triangle to the relative lengths of its sides) to survey the land around them, navigate the seas and even chart the heavens.