Srinivasa Ramanujan And His Inventions

Mathematics is a very very difficult but interesting subject with lots of rules, theorems to solve questions in practical life, and whenever one will have to name the biggest mathematician the first name would be Srinivasa Ramanujan for his incredible contribution in the history of maths.

Ramanujan was an incredible and great mathematician. His life started from a small village, in the southern part of the country, Erode in Madras on 22 December 1887. His full name was Srinivasa Iyengar Ramanujan. When he was born he was considered as the blessing of the goddess Namakkal, a local God of the region. Shortly after his birth, his family shifted to Kumbakonam where his father worked as a clerk in a cloth shop. He went to an elementary school at age of 5 and stood first in the primary school in the whole district.
When he was 15 he obtained a book named "A Synopsis of Elementary Results in Pure and Applied Mathematics" which was written by George Schoobridge Carr. In 1903 he passed his class 11th, Matriculate Exam, and won the 'Subramanyam Scholarship' for his English and Maths. Ramanujan's greatest asset also proved to be his loss as he lost his scholarship of both the government college and later at the University of Madras because of his devotion to maths which lead to the fall of his other subjects. In 1911, Ramanujan published a 17 page paper on Bernoulli numbers in the Journal of Indian Mathematical Society. He joined a clerical job in the Taluk office after marrying a girl named Janaki.

Ramanujan met the founder of the Indian Mathematical Society and showed his work to him who suggested him to go to P.V. Seshu Iyer who sent him to Diwan Bahadur at Nellore district. After that, he wrote an article to G.H. Hardy on 16 January 1930. This letter is known as the most important letter in Maths History. Having impressed by his work Hardy invited him to Cambridge to work with him at the Trinity College of Cambridge. He improved his work by working with G.H. Hardy and J.E. Littlewood who were two of the great mathematicians of that time. In England, he was elected to the London Mathematical Society and he became the first Indian to become a "Fellow of the Royal Society".
It is clear that being such a great and incredible genius he would have invented many formulas and theorems. Ramanujan had really invented n number of formulas but we will have a look at some of his most important inventions and contributions.

  1.  Landau- Ramanujan constant
  2.  Mock Theta Functions
  3.  Ramanujan Conjecture
  4.  Ramanujan Prime
  5.  More than 3900 identities
  6.  Number Theory
  7. Ramanujan- Soldner Constant
  8.  Ramanujan- Theta Function
  9.  Ramanujan's Sum
  10.  Ramanujan's Magic Square
  11.  Ramanujan's Number (1792)
  12.  Rogers- Ramanujan's Identities
  13.  Ramanujan's Master Theorem
  14.  Ramanujan- Sato Series
  15. Complex Analysis  
  16. Infinite Series  
  17. Continued Fractions

To get a mathematician like Ramanujan is not at all possible for the maths history. His devotion to mathematics was unbelievable. Even the great mathematician G.H.Hardy ranked Ramanujan in the first position with 100 points followed by Hilbert with 80 points (G.H.Hardy -25 and J.E.Littlewood-30). according to the studies Ramanujan had 185 IQ which is a very incredible figure. There is also a book named "The Man Who Knew Infinity" written on him by Robert Kanigel. He died at a very shortage of 32 on 26 April 19 20 in Kumbakonam due to hepatic amoebiasis.

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