Aryabhatiya (499 A.D.), he made the fundamental advance in finding the lengths of chords of circles, by using the half chord rather than the full chord method used by Greeks. He gave the value of as 3.1416, claiming, for the first time, that it was an approximation. He also gave methods for extracting square roots, summing arithmetic series, solving indeterminate equations of the type ax -by = c, and also gave what later came to be known as the table of Sines.
He was born in 598 A.D. His main work was Brahmasphutasiddhanta, which was a corrected version of old astronomical treatise Brahmasiddhanta. This work was later translated into Arabic as Sind Hind.He gave the formula for the area of a cyclic quadrilateral . He was the first mathematician to treat algebra and arithmetic as two different branches of mathematics. He gave the solution of the indeterminate equation Nx²+1 = y².
Bhaskaracharaya is the most well known ancient Indian mathematician. He was born in 1114 A.D. at Bijjada Bida (Bijapur, Karnataka) in the Sahyadari Hills.He was the first to declare that any number divided by zero is infinity and that the sum of any number and infinity is also infinity. He gave an example of what is now called "differential coefficient" and the basic idea of what is now called "Rolle's theorem".
He was born in a poor family at Erode in Tamil Nadu on December 22, 1887. His father, K. Srinivasa Iyengar worked as a clerk in a sari shop and his mother, Komalatammal was a housewife and also sang at a local temple.On 1 October 1892, Ramanujan was enrolled at the local school. At the Kangayan Primary School, Ramanujan performed well. Just before the age of 10, in November 1897, he passed his primary examinations in English, Tamil, geography and arithmetic. With his scores, he finished first in the distric .Largely self taught, he feasted on Loney's Trigonometry at the age of 13, and at the age of 15, his senior friends gave him Synopsis of Elementary Results in Pure and Applied Mathematics by George Carr.A few months earlier, he had sent a letter to great mathematician G.H. Hardy, in which he mentioned 120 theorems and formulae. Ramanujan published 21 papers, some in collaboration with Hardy. He died in Madras on April 26, 1920.
D.R. Kaprekar was born in 1905 in India.Kaprekar received his secondary school education in Thane and studied at Fergusson College in Pune.In 1963, Kaprekar defined the property which has come to be known as self numbers. For example, 21 is not a self number, since it can be generated from 15: 15 + 1 + 5 = 21. But 20 is a self number, since it cannot be generated from any other integer. Today his name is well-known and many other mathematicians have pursued the study of the properties he discovered.
select one here...