86 languages View history Tools Aryabhata ( Sanskrit: आर्यभट, ISO: Āryabhaṭa) or Aryabhata I [3] [4] (476–550 CE) [5] [6] was the first of the major mathematician - astronomers from the classical age of Indian mathematics and Indian astronomy.

Henri Poincaré, French mathematician, one of the greatest mathematicians and mathematical physicists at the end of 19th century. He made a series of profound innovations in geometry, the theory of differential.

Janet Barnett Jon Barwise (1942–2000) Richard Bellman (1920–1984) Leonid Berlyand (b. 1957) Leah Berman (b. 1976) Manjul Bhargava (b. 1974) George David Birkhoff (1884–1944) David Blackwell (1919–2010) Archie Blake (b. 1906) Nathaniel Bowditch (1773–1838) Felix Browder (1927–2016)

Egyptian geometry The ancient Egyptians knew that they could approximate the area of a circle as follows: [2] Area of Circle ≈ [ (Diameter) x 8/9 ] 2. Problem 50 of the Ahmes papyrus uses these methods to calculate the area of a circle, according to a rule that the area is equal to the square of 8/9 of the circle's diameter.

Indian mathematicians made early contributions to the study of the concept of zero as a number, [5] negative numbers, [6] arithmetic, and algebra. [7] In addition, trigonometry [8] was further advanced in India, and, in particular, the modern definitions of sine and cosine were developed there. [9]