Cadambathur Tiruvenkatacharlu Rajagopal
Encyclopedia
Cadambathur Tiruvenkatacharlu Rajagopal (September 8, 1903 – April 25, 1978) was an Indian
mathematician
.
Rajagopal was born in Madras, India
. He studied at Presidency College
and graduated with an Honours in mathematics in 1925. He was involved in the clerical service and then taught mathematics at Annamalai University
. Rajagopal taught mathematics at Madras Christian College
from 1931 to 1951. He joined Ramanujan Institute of Mathematics in 1951 and became its head in 1955. He helped the institute to became India's leading mathematics research centre.
Rajagopal did research on sequences, series, summability, and published more than 80 papers in this area generalising and unifying Tauberian theorems
. He also did research in other mathematical topics.
Rajagopal also did research in the history of medieval Indian mathematics. He showed that the series for tan1x discovered by James Gregory and those for sin x and cos x discovered by Isaac Newton
were known to the Hindu mathematicians 150 years earlier. He identified Madhava
as the first discoverer of these series.
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
mathematician
Mathematician
A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....
.
Rajagopal was born in Madras, India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
. He studied at Presidency College
Presidency College, Chennai
Presidency College is an arts, law and science college in the city of Chennai in Tamil Nadu, India. Established as the Madras Preparatory School on October 15, 1840 and later, upgraded to a high school and then, graduate college, the Presidency College is one of the oldest government arts colleges...
and graduated with an Honours in mathematics in 1925. He was involved in the clerical service and then taught mathematics at Annamalai University
Annamalai University
Annamalai University is a Public University located in Annamalai Nagar, Chidambaram, Tamil Nadu, India. The university offers courses of higher education in arts, sciences and engineering.The university also provides around 380 courses under distance mode...
. Rajagopal taught mathematics at Madras Christian College
Madras Christian College
The Madras Christian College, commonly known as MCC, is a liberal arts and sciences college in Madras , India. Founded in 1837, MCC is one of Asia's oldest extant colleges. Currently, the college is affiliated to the University of Madras, but functions as an autonomous institution from its campus...
from 1931 to 1951. He joined Ramanujan Institute of Mathematics in 1951 and became its head in 1955. He helped the institute to became India's leading mathematics research centre.
Rajagopal did research on sequences, series, summability, and published more than 80 papers in this area generalising and unifying Tauberian theorems
Abelian and tauberian theorems
In mathematics, abelian and tauberian theorems are theorems giving conditions for two methods of summing divergent series to give the same result, named after Niels Henrik Abel and Alfred Tauber...
. He also did research in other mathematical topics.
Rajagopal also did research in the history of medieval Indian mathematics. He showed that the series for tan1x discovered by James Gregory and those for sin x and cos x discovered by Isaac Newton
Isaac Newton
Sir Isaac Newton PRS was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian, who has been "considered by many to be the greatest and most influential scientist who ever lived."...
were known to the Hindu mathematicians 150 years earlier. He identified Madhava
Madhava of Sangamagrama
Mādhava of Sañgamāgrama was a prominent Kerala mathematician-astronomer from the town of Irińńālakkuţa near Cochin, Kerala, India. He is considered the founder of the Kerala School of Astronomy and Mathematics...
as the first discoverer of these series.