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Srinivasa Ramanujan
Srinivasa Ramanujan  

Srinivāsa Rāmānujan (18871920)  
Born 
December 22, 1887 Erode, Tamil Nadu, India 
Died 
April 26, 1920 Chetput, (Chennai), Tamil Nadu, India 
Residence  India, UK 
Nationality  Indian 
Fields  Mathematician 
Alma mater  University of Cambridge 
Doctoral advisor  G. H. Hardy and J. E. Littlewood 
Known for 
LandauRamanujan constant 
Srinivasa Ramanujan Iyengar Tamil: ஸ்ரீனிவாச ராமானுஜன் (December 22, 1887 – April 26, 1920) was an Indian mathematician. He is considered to be one of the most talented mathematicians in recent history. He had no formal training in mathematics. However, he still made large contributions to number theory, infinite series and continued fractions.
He was mentored by G. H. Hardy in the early 1910s. After getting his degree at Cambridge, Ramanujan did his own work. He compiled over 3500 identities and equations in his life. Some of the identities were found in his "lost notebook". When the notebook was discovered, mathematicians proved almost all of Ramanujan's work. His discoveries have led to many advancements in mathematics. His formulas are now being used in crystallography and string theory.
In 2011, Ramanujan's birthday was made an annual "National Mathematics Day" by Prime Minister Manmohan Singh.^{[1]}
Other pages
References
 ↑ Jaishankar, C. (27 December 2011). "Ramanujan's birthday will be National Mathematics Day". http://www.thehindu.com/news/cities/chennai/article2750402.ece.

