Dr. Ramasubramanian, historian and sanskrit scholar, explains the origins and the lineage of the medieval Kerala School of Mathematics and Astronomy.
https://en.wikipedia.org/wiki/Kerala_school_of_astronomy_and_mathematics
https://en.wikipedia.org/wiki/Madhava_of_Sangamagrama
https://en.wikipedia.org/wiki/Kerala_school_of_astronomy_and_mathematics
https://en.wikipedia.org/wiki/Madhava_of_Sangamagrama
