He was the first in the world to use infinite series approximations for a range of trigonometric functions, which has been called the "decisive step … Madhava. Madhava-Gregory series (RC Gupta in a math journal, 1973) Madhava’s other contributions come from a variety of scholars and include: Trigonometry – table of sines and values of half-sine chords for 24 arcs drawn at equal intervals in a quarter of a given circle. 9 III. Madhava of Sangamagramma. Madhava of Sangamagrama Wikipedia open wikipedia design. Madhava of Sangamagrama has appeared in the following books: Significant Figures: The Lives and Work of Great Mathematicians and The Story of Mathematics Madhava of Sangamagrama (c. 1340 – c. 1425), was an Indian mathematician-astronomer from the town of Sangamagrama. However, most of Madhava's original work (except a couple of them) is lost. Although there is some evidence of mathematical work in Kerala prior to Madhava (e.g., Sadratnamala c. 1300, a set of fragmentary results), it is clear from citations that Madhava provided the creative impulse for the development of a rich mathematical tradition in medieval Kerala. Born: c. 1340 (or c. 1350) Died: c. 1425: Nationality : Indian: Occupation: Astronomer-mathematician: Known for: Discovery of power series expansions of trigonometric sine, cosine and arctangent functions; infinite series summation formulae for π: Notable work. His writings were later transmitted to Europe via Jesuit missionaries and traders who were active around the ancient port of Muziris at the time. In 14th century Kerala, the astronomer and mathematician Madhava of Sangamagrama (1349-1425) can lay claim to the title of the man who knew infinity.

It’s a discovery that serves as a precursor to calculus. The first known proofs of an infinite series expansion were devised here, in what came to be known as the Kerala school of astronomy and mathematics. Although born in Cochin on the Keralese coast before the previous four scholars I have chosen to save my discussion of Madhava of Sangamagramma (c. 1340 - 1425) till last, as I consider him to be the greatest mathematician-astronomer of medieval India. Madhava of Sangamagrama ( ; ), was an Indian mathematician-astronomer from the town of Sangamagrama (present day Irinjalakuda) near Cochin, Kerala, India. As a result, it had an influence on later European developments in analysis and calculus. He is considered the founder of the Kerala school of astronomy and mathematics. Value of pi – infinite series expansion of pi now known as the .