K.R. Rajagopalan, retired professor of statistics, Madras Christian College (MCC), died in the early hours of Monday. He was 90. He served the institution for more than three decades, introducing innovative methods of teaching.

He was a pioneer in conducting pre-poll opinion surveys in the early 1970s and also authored a book in Tamil on the history of Indian Mathematics ( Indhiya Ganitha Varalaru ).

On the occasion of the birth centenary of mathematician Srinivasa Ramanujan, he authored a biography of him. Besides Statistics, Prof. Rajagopalan was deeply interested in music and literature. His studies, on topics ranging from music to social customs, were published by the Statistics Department of MCC. He was associated with Sruti Magazine. He is survived by wife, two daughters and a son.

source: http://www.thehindu.com / The Hindu / Home> News> Cities> Chennai / by Special Correspondent / Chennai – December 30th, 2015