Infinite Series
Kerala, IndiaGreek mathematician Archimedes produced the first known summation of an infinite series with a method that is still used in the area of calculus today. He used the method of exhaustion to calculate the area under the arc of a parabola with the summation of an infinite series, and gave a remarkably accurate approximation of π.[86] The Kerala school has made a number of contributions to the fields of infinite series and calculus.