Srinivasa Ramanujan

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Srinivasa Ramanujan
Srinivāsa Rāmānujan (1887-1920)
Born December 22, 1887
Erode, Tamil Nadu, India
Died April 26, 1920
Chetput, (Chennai), Tamil Nadu, India
Residence Flag of India.svg India, Flag of the United Kingdom.svg UK
Nationality Flag of India.svg Indian
Fields Mathematician
Alma mater University of Cambridge
Doctoral advisor G. H. Hardy and J. E. Littlewood
Known for

Landau-Ramanujan constant
Ramanujan-Soldner constant
Ramanujan theta function
Rogers-Ramanujan identities
Ramanujan prime
Mock theta functions

Ramanujan's sum

Srinivasa Ramanujan Iyengar (December 22, 1887April 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 has made a large contribution 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]

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