Personality:
A.A. Krishnaswami Ayyangar was born in a traditional Vaishnavaite family. He studied at Pachaiappas College, Chennai (Madras), and was awarded his M.A. in Mathematics in 1911 when he was 18 years old. He was then appointed to teach mathematics at Pachaiappas College and he taught there until 1918.

R S Ridharan, reviewing, writes:-

It should be an interesting problem for a socio-psychologist to analyse the effects on the members of a society brought upon by the birth of a genius among them. Such a typical instance was the birth of Srinivasa Ramanujan in the Tamil country. Whatever be the other effects, it certainly led to an increased awareness and appreciation of the rich mathematical heritage of India and a renewal of interest in the study of mathematics. This renaissance in Tamil Nadu showed itself in the coming up of a number of gifted teachers, well versed not only in mathematics, but also in the mathematical legacy of the country. A A Krishnaswami Ayyangar was prominent among them.

His papers include: Ancient Hindu Mathematics (1921); The Hindu sine Table (1923-24); The mathematics of Aryabhata (1926); The Hindu Arabic numerals (2 parts) (1928,1929); Bhaskara and samclishta kuttaka (1929-30); New light on Bhaskara's chakravala or cyclic method of solving indeterminate equations of the second degree in two variables (1929-30); New proofs of old theorems - Apollonius and Brahmagupta (1920-30); Astronomy - past and present (1930); Some glimpses of ancient Hindu mathematics (1933); Fourteen calendars (1937); A new continued fraction (1937-38); The Bhakshali manuscript (1939); Theory of the nearest square continued fraction (2 parts) (1940, 1941); Peeps into India's mathematical past (1945); and Remarks on Bhaskara's approximation to the sine of an angle (1950).

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