Srinivasa Ramanujam 22 December 1887 - 26 April 1920) was an Indian mathematician who lived during -the British Rule in India. Though he had almost no formal training in pure mathematics, he made substantial contributions to
mathematical analysis, numbertheory, infinite series, and continued fractions, including solutions to. mathematical problems considered to be unsolvable. Ramanujan initially developed his own mathematical research in isolation: "He tried to interest the leading professional mathematicians in his Work.