India celebrates “National Mathematics Day” every year on December 22 to mark Srinivasa Ramanujan’s birthday across the country with several educational events in schools and colleges.

Who was Srinivasa Ramanujan

• Srinivasa Ramanujan born 22 December 1887
• An Indian mathematician who lived during the British Rule in India.
• He made substantial contributions to mathematical analysis, number theory, infinite series, and continued fractions, including solutions to mathematical problems then considered unsolvable. R
• Ramanujan initially developed his own mathematical research in isolation:
• Iin 1913 he began a postal partnership with the English mathematician G. H. Hardy at the University of Cambridge, England.
• Ramanujan independently compiled nearly 3,900 results (mostly identities and equations).
•  Ramanujan theta function, partition formulae and mock theta functions, have opened entire new areas of work and inspired a vast amount of further research.
• All his claims have now been proven correct.
• The Ramanujan Journal, a scientific journal, was established to publish work in all areas of mathematics influenced by Ramanujan.
• His notebooks—containing summaries of his published and unpublished results—have been analysed and studied for decades since his death as a source of new mathematical ideas.
• As late as 2011 and again in 2012, researchers continued to discover that mere comments in his writings about “simple properties” and “similar outputs” for certain findings were themselves profound and subtle number theory results that remained unsuspected until nearly a century after his death.
• He became one of the youngest Fellows of the Royal Society and only the second Indian member, and the first Indian to be elected a Fellow of Trinity College, Cambridge.
• In 1919, ill health—now believed to have been hepatic amoebiasis (a complication from episodes of dysentery many years previously)—compelled Ramanujan’s return to India.
• Srinivasa Ramanujan died in 1920 at the age of 32.
• His “lost notebook”, containing discoveries from the last year of his life, caused great excitement among mathematicians when it was rediscovered in 1976.

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