ராமானுஜன் குறுகிய காலத்தில் கண்டுபிடித்தவை:

                                                          Pic : (Kumbakonam Mens College )


He had compiled over 3,200 theorems during his short lifetime.
Ramanujan worked out the Riemann series, the elliptic integrals, hypergeometric series and functional equations of the zeta function.Ramanujan independently discovered results of Gauss, Kummer and others on hypergeometric series. Ramanujan's own work on partial sums and products of hypergeometric series have led to major development in the topic. Perhaps his most famous work was on the number p(n) of partitions of an integer n into summands. MacMahon had produced tables of the value of p(n) for small numbers n, and Ramanujan used this numerical data to conjecture some remarkable properties some of which he proved using elliptic functions.
Ramanujan gave an asymptotic formula for p(n). It had the remarkable property that it appeared to give the correct value of p(n), and this was later proved by Rademacher.
Ramanujan left a number of unpublished notebooks filled with theorems that mathematicians have continued to study. G N Watson, Mason Professor of Pure Mathematics at Birmingham from 1918 to 1951 published 14 papers under the general title 'Theorems' stated by Ramanujan and in all he published nearly 30 papers which were inspired by Ramanujan's work. Hardy passed on to Watson the large number of manuscripts of Ramanujan that he had, both written before 1914 and some written in Ramanujan's last year in India before his death.
He also made major breakthroughs and discoveries in the areas of:
Gamma functions
Modular forms
Ramanujan's continued fractions
Divergent series
Hypergeometric series
Prime number theory. A type of prime numbers based on a 1919 publication by Ramanujan is named Ramanujan primes.
Mock theta functions