Srinivasa Ramanujan 1887 – 1920.

Full Name-

Srinivasa Ramanujan 

Born-

22 December 1887 

Died-

26 April 1920

• He made substantial contributions to mathematical analysis, number theory, infinite series, and continued fractions, 
• During his short life, Ramanujan independently compiled nearly 3,900 results (mostly identities and equations).
• Ramanujan credited his substantial mathematical capacities to divinity and stated that the mathematical knowledge he displayed was revealed to him by his family goddess. "An equation for me has no meaning," he once said, "unless it expresses a thought of God."
• His "lost notebook", containing discoveries from the last year of his life, caused great excitement among mathematicians when it was rediscovered in 1976.
• In 2011, on the 125th anniversary of his birth, the Indian Government declared that 22 December will be celebrated every year as National Mathematics Day. Then Indian Prime Minister Manmohan Singh also declared that the year 2012 would be celebrated as the National Mathematics Year.

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Famous for-

1. Landau–Ramanujan constant
2. Mock theta functions
3. Ramanujan conjecture
4. Ramanujan prime
5. Ramanujan–Soldner constant
6. Ramanujan theta function
7. Ramanujan's sum
8. Rogers–Ramanujan identities
9. Ramanujan's master theorem
10. Ramanujan–Sato series

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